Press Space or Click to pulse. Click the auto slow button in the menu to toggle auto slow. If you haven't put auto slow on, your speed will gradually increase, so you need to manualy decrease your speed. If auto slow is on, your speed will always be the same. Be warned! The game gets much harder as you progress
This is a Circuit System themed flappy flier ("Flappy Flier" is a type of game). Circuit System the website: www.circuitsystemgaming.weebly.com Thanks to @RememberNovember for some of the scripts I used