do you suffer motion sickness?, the waving is too little just 0,1 from 100. and the game difficulty is actually easy, my 8 years old was testing it and beat the game everytime, from 20 plays just lose 1, when you pick the purple power up, hit space and you can literaly shoot bullets and beat the game ease, and remember the only way to beat the game is not that one, there are 3 endings and that one is the normal one.