Whew, this is a tough game! Managed to make it to the first checkpoint but struggled to get through the following spiky tunnel. Got the air upgrade but was a little sad to lose it when I restarted from the checkpoint.
The theme definitely comes through and the hoover does an incredible amount of different things! I did find it difficult to control but I'm sure it's a control scheme that can be mastered. I do wonder if I might find it easier with an analogue stick to aim rather than mouse control? It would mean not having to keep the mouse relative to the character's position to maintain the same angle.
One of the strongest contenders for matching the theme, excellent work!