What works
Everything except the graphics.

What does not
Most of the in-game object are surrounded by solid-color boxes. Even the trees in the background, grass, etc. In some cases this causes significant problems, like enemies being located behind a block of color where they can barely be seen, if at all.

What was not tested
I only played up to the third level.
Sound.

Additional Comments

Note that this game has some bugs which are unrelated to Wine, as they can be reproduced in Windows:

- Getting a game over is impossible; you get a negative number of lives instead.
- Attacking something to the left is impossible; attacks always go to the right even when facing left.
- If the game window loses focus while moving left or right, Pikachu will continue moving in that direction until the window regains focus and the same direction key is pressed again (or until you lose a life).