Re-shoot when playing against the CPU:
To re-shoot an incorrect shot with the same angle, but a different strength, wait until the CPU takes its turn after the bad shot. Press Left to enter replay mode during the CPU's turn, then hold R to change to the overhead view before the replay begins. Hold A and re-shoot after changing the strength of the shot.

Rotate CPU cue stick:
Press R to change to the overhead view while the CPU is taking a shot. The CPU cue stick may be rotated from this screen.

Extra rating points:
Defeat the CPU in a game, then view the replay. Your rating points will increase each time the replay of your win is viewed.