uhm.. Press the arrow keys... The screen is only waiting for input... SORRY.
And here I was bashing space, enter and WASD but NOT the arrow keys... I feel a bit silly now :D.
I got so owned on Level 2 when those exploding balls came but got score of 37,500!
I felt like the hit box should have been smaller like in Touhou games etc.
Thanks for the tip~! Will try to implement variable speed and size to customize difficulty levels. And getting 37,500 is already an almost perfect run~!