Click to point the stream -> lag-free Press space to do mega circle -> laggy Press up to do a weird explosion thingy -> a bit laggy Press down to do blur -> a bit laggy Press the left key to make balls of colour come out -> not too laggy Press the right key to make stars with the balls of colour ->not too laggy press the M key to explode->reasonably laggy press the V key to do a long line->not laggy press B to do the next costume->totally not laggy I recommend the large circle costume
WARNING ----- It might be quite laggy