I would say the mechanic that using recoil to move is creative, especially in an FPS game! This game reminds me of one level of Wolfenstein II. And I also like the visual effect of the game. One thing that I want to mention about my experience is I didn't feel like I have much control with the wheel chair. If some wheelchair-specific features could be incorporated as additional movement mechanics, I think the game might become even better! Of course, it’s your game, and the best approach is to design it according to your own ideas. I can only offer a few suggestions from a player’s perspective. Overall, I have to say this is one of the most creative game jam FPS games I’ve played!
Here is my game:https://itch.io/jam/brackeys-15/rate/4312755 . Hopes you like it! And please feel free to leave any feedbacks!