Cool game, I do like that Pac Man and the ghosts are replaced with your own original cat and mouse assets which is a great idea. I personally found the player AI to be fairly easy to catch, but I think it worked very well considering it is a jam game implementation. Like others have said, the player movement is a bit weird just because it's not grid-based, but that's just a minor issue I feel. The sprites and music definitely feel like they're straight out of an old arcade game, I think the theming is excellent. Well done!
Also, I think I noticed the orange cat moving away from the mouse at one point, which is how the orange ghost moves in the original game iirc. Really great touch if you based the cat AI on the original game, I can't tell just from this one observation but I think it's impressive attention to detail if you did!