Beat the first boss
Get a new electron
Libraries have those
Get to the water place
Destroy 20 fish
Survive it
Beat the second boss
Beat the third boss
Get 100 coins
Get help from an artificial intelligence
Discover the library
Gain 50 coins
Press the button on the floor
Destroy 10 enemies
Gain an electron
Gain 10 coins
Gain 1 coin
Destroy 1 enemy
Gain a key
Discover a PC
You have defeated the first boss
Found a medicine tube
Entered the water zone
Destroyed 5 fish
Survived the drowning attempt