If you ever get stuck and don’t know in which direction you should go next, try to follow the nuts. They will most likely show you the way. Sometimes there is more than one exit, so take a look at all other options in the level. Another exit might allow you to get some treasure chests. To get to yellow and pink exits, you need to activate certain special abilities. The green exits are the only ones that don’t require absolutely anything. When fighting enemies, try to tap the screen just before your character encounters an enemy. That way you’ll do a critical hit which can take out two units of the enemy’s health bar. To permanently increase your character's health, find Heart in a Bottle items. They are usually located in some optional rooms so make sure you search through levels thoroughly. Because there are both timed and regular levers you can pull in game, it’s important to differentiate between the two. You’ll know you’ve pulled a timed lever if you hear a ticking sound afterwards. A red button with a round arrow on it resets everything in the level, which can be both useful and frustrating depending on the situation.