The original controls makes your jump go higher, apparently. I haven't managed to reach this secret with the modern controls, but I can do it consistently with the tank controls (old ones).
As a side note, seems like the action button doesnt work properly on modern controls? Tried to rebind it to another button but doesnt work at all.
![](https://i.ytimg.com/vi/Yz6FCy7e9Vs/maxresdefault.jpg)