Pika Cup

From Bulbapedia, the community-driven Pokémon encyclopedia.

The Pika Cup is the lowest-level Stadium Cup in Pokémon Stadium, and did not return in Pokémon Stadium 2.

It is a cup for low leveled Pokémon, specifically those from Level 15 to Level 20. The sum of the levels of the three Pokémon chosen cannot be more than 50. Technically, all Pokémon except for Mewtwo and Mew are eligable to enter. However, getting strong Pokémon at that low of a level can get quite complicated. While some are catchable at low levels in certain versions (e.g. Level 15 Dragonair in Yellow), others are more complex and involve trading across the in-game trainers and the different versions. Interestingly, as many of these involve the Yellow version, its naming after that game's version mascot, Pikachu may have had more than one point to it.

Ignoring glitches and tradebacks from Generation II, the following Pokémon may be legitimately obtained and entered into the cup.

Pokémon	Lowest Level Usable	Versions required	How to obtain
Bulbasaur	15	Any	In RGB, obtain as a starter Pokémon. In Yellow, get in Cerulean City.
Ivysaur	16	Any	Evolve from Bulbasaur
Charmander	15	Any	In RGB, obtain as a starter Pokémon. In Yellow, get on Route 24.
Charmeleon	16	Any	Evolve from Charmander
Squirtle	15	Any	In RGB, obtain as a starter Pokémon. In Yellow, get in Vermilion City.
Wartortle	16	Any	Evolve from Squirtle
Caterpie	15	Any	Catch in Viridian Forest.
Metapod	15	Any	Catch in Viridian Forest. Or, evolve from Caterpie.
Butterfree	15	Any	Evolve from Metapod
Weedle	15	RG or B	Catch in Viridian Forest.
Kakuna	15	RG or B	Catch in Viridian Forest. Or, evolve from Weedle.
Beedrill	15	RG or B	Evolve from Kakuna
Pidgey	15	Any	Most early routes.
Pidgeotto	15	Y (any)	Catch at Level 9 in Viridian Forest. Failing that, can be evolved from Pidgey at Level 18.
Rattata	15	Any	Most early routes.
Raticate	15	Y (any)	Route 21. Failing that, evolve from Rattata at Level 20.
Spearow	15	Any	Early routes.
Fearow	19	Y	Route 9
Ekans	15	R	Some routes (e.g. Route 4)
Pikachu	15	Any	Viridian Forest in RGB. Obtain as a starter Pokémon in Yellow.
Raichu	15	RG or B	Evolve Pikachu
Sandshrew	15	GB or Y	Certain routes.
Nidoran♀	15	Any	Catch on Route 22
Nidorina	16	Any	Evolve Nidoran Female
Nidoqueen	16	Any	Evolve Nidorina
Nidoran♂	15	Any	Catch on Route 22
Nidorino	16	Any	Evolve Nidoran Male
Nidoking	16	Any	Evolve Nidorino
Clefairy	15	Any	Catch in Mt.Moon. Or, get from the Game Corner Exchange in Red or Green.
Clefable	15	Any	Evolve Clefairy
Vulpix	15	G	Route 8
Ninetales	15	G	Evolve Vulpix
Jigglypuff	15	Any	Route 3
Wigglytuff	15	Any	Evolve Jigglypuff
Zubat	15	Any	Mt. Moon
Oddish	15	RB or Y	e.g. Route 24
Paras	15	Any	Mt. Moon
Parasect	15	R or G and Y	Catch a Level 13 Venonat on Yellow on Route 24 or 25, and trade to Red or Green. Trade for a Tangela in Cinnabar Island's Lab, and trade said Tangela to Yellow and trade it at Route 18.
Venonat	15	Y	Catch on Route 24 or 25.
Diglett	15	Any	Diglett's Cave
Dugtrio	15	R or G and Y	Catch a Level 15 Slowbro in Yellow on Route 12 or 13, and trade it to Red or Green. Trade the Slowbro for a Level 15 Lickitung at the Cycling Road gate, and transfer it back to Yellow. Trade the Lickitung for the Dugtrio on Route 11.
Meowth	15	G or B	Routes 5 and 6.
Psyduck	15	Any	In RGB, fish in certain locations, such as the Safari Zone. In Yellow, surf on Route 6.
Golduck	15	Y	Surf on Route 6.
Mankey	15	R or Y	Routes 5 and 6 on Red. Routes 3, 4 and 22 in Yellow.
Growlithe	15	R or B	Route 8.
Arcanine	15	R or B	Evolve Growlithe
Poliwag	15	Any	Fish anywhere with the Good Rod.
Poliwhirl	15	Y	Fish on Route 22
Poliwrath	15	Y	Evolve Poliwhirl
Abra	15	Any	Many locations, most notably the Game Corner.
Kadabra	16	Any	Evolve Abra
Alakazam	16	Any and Any	Trade Kadabra
Machop	15	RG or B	Rock Tunnel
Machamp	16	Y	Catch a Level 16 Cubone in the Safari Zone on Yellow, and trade for a Machoke (which will summarily evolve into Machamp) on Route 5.
Bellsprout	15	B or Y	e.g. Route 24
Tentacool	15	Any	Surf on Sea Routes
Tentacruel	20	Y	Fish on Route 20
Geodude	15	Any	Mt. Moon
Golem	16	B	Evolve an Abra into Kadabra, and make the trade at Cinnabar Island's Lab.
Slowpoke	15	Any	Fish in various locations in Red, Green, and Blue, surf on Route 12 in Yellow.
Slowbro	15	Y	Surf on Route 12 in Yellow.
Magnemite	16	Y	Route 10
Farfetch'd	15	RG or B	Trade for a Spearow (Red and Green) or a Pidgey (Blue) in Vermilion City.
Doduo	18	RG or B	Route 16
Dewgong	15	R and Y	Catch a Level 15 Growlithe on Red, and transfer it to Yellow. Trade it for the Dewgong in Cinnabar Island's lab.
Muk	15	B and Y	Capture a Level 15 Golduck on Yellow, and trade it for a Level 15 Rhydon in Cinnabar Island's Lab. Trade the Rhydon to Blue, and trade it for a Level 15 Kangaskhan on Route 11. Transfer the Kangaskhan over to Yellow, and trade it at Cinnabar Island for the Muk.
Shellder	15	Any	Fish in certain locations (e.g. Vermilion City)
Cloyster	15	Any	Evolve Shellder
Gastly	18	Any	Pokémon Tower
Haunter	20	Y	Pokémon Tower
Gengar	20	Y and Any	Trade Haunter
Onix	15	Any	Rock Tunnel
Drowzee	15	Any	Route 11
Krabby	15	Any	Fish in certain locations, e.g. Route 25
Kingler	15	Y	Fish on Route 25
Voltorb	15	RG or B	Route 14
Electrode	15	R or G	Capture a Pikachu in Viridian Forest, evolve it into Raichu, and trade for Electrode on Cinnabar Island.
Exeggcute	20	Y	Catch in the Safari Zone.
Exeggutor	20	Y	Evolve from Exeggcute
Cubone	16	Y	Catch in the Safari Zone.
Hitmonlee	20	Any	A possible reward for beating the rival at Gym Leader Castle.
Hitmonchan	20	Any	A possible reward for beating the rival at Gym Leader Castle.
Lickitung	15	R or G and Y	Catch a Level 15 Slowbro in Yellow on Route 12 or 13, and trade it to Red or Green. Trade the Slowbro for a Level 15 Lickitung at the Cycling Road gate.
Rhyhorn	20	Y	Catch in the Safari Zone.
Rhydon	15	Y	Catch a Level 15 Golduck by Surfing on Route 6, and trade it for Rhydon in Cinnabar Island's lab.
Chansey	15	Y	Catch in the Safari Zone.
Tangela	15	R or G and Y	Catch a Venonat in the Yellow version on Route 24 or 25. Trade it over to Red or Green, and trade with the woman in Cinnabar Island's lab.
Kangaskhan	15	B and Y	Capture a Level 15 Golduck on Route 6 on Yellow, and trade it for a Level 15 Rhydon in Cinnabar Island's Lab. Trade the Rhydon to Blue, and trade it for a Level 15 Kangaskhan on Route 11.
Horsea	15	Any	Fish at various locations, e.g. Route 11
Seadra	20	Y	Fish on Route 13
Goldeen	15	Any	Fish anywhere with the Good Rod.
Staryu	15	Any	Fish at various locations
Starmie	15	Any	Evolve Staryu
Mr. Mime	15	Any	Trade for it on Route 2. Trade an Abra on Red or Green, a Clefairy on Yellow, or a Jigglypuff on Blue.
Scyther	15	Y	Safari Zone
Jynx	15	R or G and Y	Fish for a Level 15 Poliwhirl on Yellow (e.g. on Route 22), trade it to Red or Green, and trade the Poliwhirl for Jynx in Cerulean City.
Pinsir	15	Y	Safari Zone
Magikarp	15	Any	Fish practically anywhere with the Old Rod.
Gyarados	15	Y	Fish in Fuchsia City
Lapras	15	Any	Get from the Silph Co. employee
Ditto	15	Y	Cinnabar Mansion
Eevee	20	Any	A possible reward for beating the rival at Gym Leader Castle.
Vaporeon	20	Any	Evolve Eevee
Jolteon	20	Any	Evolve Eevee
Flareon	20	Any	Evolve Eevee
Porygon	18	G	Game Corner Exchange
Omanyte	20	Any	A possible reward for beating the rival at Gym Leader Castle.
Kabuto	20	Any	A possible reward for beating the rival at Gym Leader Castle.
Dratini	15	Any	Fish in the Safari Zone.
Dragonair	15	Y	Fish in the Safari Zone.