Haha, I like it.

Although a bazooka would be more convinient because the grenades explode on impact.
Also I would add the controls to the startup screen.

But except for that it's nicely done, good job

Edit: Source code works perfectly with A8.45 beta Pro.

Edit2: I actually found a bug:
I can't throw grenades when using the published .exe, running the source code from sed works fine, though.
(could be a problem with my pc. The f-keys aren't working for my projects either)

Also the bitmaps kind of break when I tab out and in again, but that might be an engine related issue.