Its a really tough game but I get thats the idea.
This may go against the idea of the game but perhaps a double jump function. It would make it slightly easier to get onto platforms but if I'm honest I could only handle the frustration for 5 minutes and then quit.
I really like the concept and wanted to play longer but it was too apparent I was never going to win so it felt like there would be no reward to enduring longer - might just be me but good effort.
I just played the easy version. Didn't quite make it, still challenging once things start firing at you but I enjoyed it a lot more and will probably play that version again.