EASY DIFFICULTY
1. Poliwrath, Poliwhirl
2. Serperior, Rhyperior
3. Mew, Muk
4. Dratini, Victini
5. Woobat, Wooper
6. Jigglypuff, Wigglytuff
7. Pinsir, Pineco
8. Flareon, Glaceon
9. Staryu, Starly
10. Chikorita, Gothorita
11. Seaking, Slaking
12. Golbat, Golett
MEDIUM DIFFICULTY
1. Axew, Uxie
2. Steelix, Snorlax
3. Lugia, Luxio
4. Torchic, Togetic
5. Mareep, Marill
6. Mantyke, Machoke
7. Jynx, Onix
8. Hoothoot, Houndoom
9. Golem, Gloom
10. Froslass, Frillish
11. Vigoroth, Venomoth
12. Forretress, Ferrothorn
13. Jirachi, Pikachu
14. Arceus, Archen
15. Gastrodon, Bastiodon
16. Torterra, Tirtouga
HARD DIFFICULTY
1. Dugtrio, Lucario
2. Wailmer, Whismur
3. Sigilyph, Gigalith
4. Purugly, Scraggy
5. Jellicent, Lilligant
6. Wynaut, Tynamo
7. Masquerain, Misdreavus
8. Chingling, Klinklang
9. Baltoy, Gastly
10. Whimsicott, Whirlipede
11. Snubbull, Trubbish
12. Solrock, Solosis
13. Scizor, Buizel
14. Qwilfish, Stunfisk
15. Sandslash, Vanillish
16. Roserade, Nosepass
17. Drowzee, Bronzor
18. Blastoise, Electrike
19. Poochyena, Honchkrow
20. Bellsprout, Whimsicott