VS AI: drag left/right anywhere on your side (bottom), or use A/D keys, to move your paddle.
1v1 LOCAL: player 1 uses the bottom half of the screen (or A/D keys), player 2 uses the top half (or ← / → arrow keys).
ENDLESS: rally the ball against the top wall solo — it speeds up the longer you last. One miss ends it.
Hit the ball hard for a SMASH!