Defeat a bomb launcher enemy
Buy 1 heart
Get 40 coins
Defeat a rifle enemy
Get 20 coins
Get a coin
Defeat a bandana-enemy
Complete a full combo
Hit a homless guy
Defeat a fat enemy
Defeat a cyborg-looking enemy
Play a slot game
Reach the 1st boss
Reach the 2nd boss
Reach the 3rd boss
Reach the 1st boss in Hard Difficulty
Defeat the 1st boss
Defeat the 2nd boss
Buy 3 hearts
Buy 5 hearts
Destroy a Laser Eye