Animation bug in Keen 3 at the end boss fight
After destroying the power cores (or whatever it's called) on the Mortimer boss fight in Keen 3, some of the power cores just freeze frame instead of turning into a "fps crosshair" after destroying them. As seen in the pictures below, I've just drawn some circles around the affected power cores that stop animating after getting destroyed.
On the last image, after I destroyed the machinery, everything explodes besides the two last "frozen" power core, but after a few seconds the two "frozen" power cores gets destroyed as well, triggering the end credits sequence.
This was all tested on CGenius 63f0a615 on Windows 11.