Really fun game, kept me playing for a while. I did notice some collision issues that seemed to stop my dash when I felt like I should have kept going, especially when dashing down at an object I was standing on. After getting to around 2000m I didn't see much reason to keep going, it felt like the money generation rate wasn't really increasing so the final upgrades would have taken a fair while to build to and I didn't quite see anything to work toward. Also, the background music is very monotonous.
When you get some momentum going, the dash-stop-dash mechanic feels really great. You have a strong art style, and I like that the pickups are colored to stand out. It would be cool if the cereal box stood out similarly, it seemed to be the only 'normal' object that was a source of powerups, but I didn't even notice until my buddy pointed it out, I was too focused on the player character.
Overall, awesome work.