If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
What it Platcore?! Well Platcore a platformer/avoid style of gameplay, you play as a Platbot which is a testing robot for Platcore, and Platcore will be using you to test out their newest products, which come in the form of things which aren't exactly your friend (Lasers, turrets, even bigger lasers, and evil things!). You play in a test chamber and your sole aim is to stay alive and survive the testing procedures, remember though, your robot is dispensable so there are MANY robots to play as if yours gets destroyed.
The games soundtrack is synced up to the Platcore AI, so when the soundtrack goes boom, something else is going boom, and it's likely to hit you in the face.
If you chose the wrong control scheme, just reload the game and you'll be able to pick it again! :)
Be warned, if you skip through the tutorial - you can't get it back without deleting your save file! So read!
If you're experiencing lag - right click and turn the quality down! This is important as a few people experience lag for a reason unknown to me!