Here is the full list of all 34 Obama Boss Fight achievements.
Beat the game on Ultrahardcore difficulty
Destroy 250 hands
Destroy 500 hands
Beat the game without taking any damage on Ultrahardcore difficulty
Beat the game in 7 minutes
Beat the game 3 times on any difficulty
Beat the game without using lightning spell
Beat the game without using fireball spell
Beat the game without using dashes
Beat the game without using barrage and healing spells
Beat the game using only fireball
Beat the game using only healing or barrage spells
Beat the game using only lightning spell
Survive 5 seconds at minimum health
Don't kill hands within 7 minutes
Fall under the arena
Don't kill hands within 3 minutes
Complete Phase 9
Beat the game on Hardcore difficulty
Complete Phase 8
Complete Phase 7
Destroy 100 hands
Make a spell combo
Complete Phase 6
Complete Phase 5
Kill Yin-Yang hand
Complete Phase 4
Complete Phase 3
Complete Phase 2
Die first time
Lose half your health
Use healing spell
Complete Phase 1
Discover settings