Destroy enemies within one block
Type in “empulse” during the game. This will destroy all enemies within one block of you but works only once during a game. If you use the “empulse” cheat, be aware that using it will remove the gem for that level. – knd1994123 and fruitrach
Change the text to what you want
On the opening page with the ‘Instructions’ and ‘Play Game’, you can hover your mouse just below the letters so that your cursor turns into the little ‘I’. This allows you to change what is there by deleting and typing. For instance you can change ‘Play Game’ to ‘Play Name’ or you could just get rid of the entire thing and write anything you want! – Frederickliv