press the green flag to make a mouse trail Now with different effects that can be added Press C to change the color Press B to change the brightness Press F to change the fisheye effect (and to pay respects) Press G to make the trail faded Press M to change the mosaic effect Press P to make it pixelated Press W to change the whirl effect Press D to decrease the size Press E for a surprise (hehe) Also the other effects don't really work well with effect E but you could try to turn off an effect just press the key again.
Thank you to Animemagic2022 for the idea for the update feel free to like and favorite