Hmm, I really like where this is going, and I feel like it has all of the engine components necessary to create a good beat-em-up, but unfortunately the execution is very lacking and the game just felt very bland to me. Yes, it makes sense considering it is just a game jam game, and in a way you can consider this a victory already since it does show promise for future development, but what can I say: beat-me-ups are my favorite genre so I'm a real stickler when it comes to them!
The big problem I have right now is that the player moveset is very boring as the enemies don't provide enough variety to facilitate any sort of strategy. For example, right now there's no reason to use the dodge roll as its too easy to just walk around bullets or kill enemies before they can fire, and there's no reason to use the keyboard smack over the mouse whip since it's just so much safer for a slight decrease in damage/knockback.
Therefore, what I'd love is more cooler moves and more diverse enemies that force you to use those moves strategically. For example, perhaps the mouse whip doesn't do any damage, but is more like a Zelda boomerang in that it stuns enemies: that way it serves an alternate crowd control purpose, and you could also gussy it up by perhaps making them take more damage or drop resources when you keyboard smack them while they're stunned. Another idea is maybe you could have enemies with shields that require you to get close and use a keyboard smack to knock them away as the mouse whip isn't powerful enough to open them up. Stuff like this would add a lot more flavor!
I notice a lot of people also talking about how you can smack the chair into people and it's very fun: that's a good sign for something else that should be building upon, as lord knows I know a game with a cool telekenesis mechanic like Half-Life 2 or Dead Space!
Again, right now I'm not that impressed with the execution, but I am impressed with the skeleton you've constructed: you've got all of the nouns and verbs that could be used to make a great beat-em-up where you rampage through an office, first wrecking weak employees, then defeating strong bosses, then facing off against security detail and finally defeating the CEO in his penthouse...I'd love to see it!