Keys:
A/left arrow - left
D/right arrow - right
W/up arrow - jump
P - pause
K - restart level

Scoring:
Ace: 200 points
Winner: 100 points
Point: 50 points
Level bonus: Your points/total points, times 1000
Time bonus: 1 point per second less than five minutes you take
Flawless victory: 1000 points
All multiplied by 2^(the level number - 1)

Tips:
Check out the actual FAQ located here