Seems great so far, but how do you swap gadgets? Mine are stuck to the first two, the upwards boost and the repulsor.
Also, not sure whether it's an issue on my end, but my game freezes when I have enough money for a rewind and click the "◎ 750,000" button on the upgrade menu.
The price doesn't update while the confirmation screen is open so I can't spend to get below 750,000, open the screen, then earn to meet the requirement.
Edit: Now my save won't load after opening a duplicate tab of the game to get some screenshots. It's a permanent "Loading..." screen.
Firefox 157.0.1 (aarch64), Mac OS