Very good remake of Manic Miner. However, these types of games are very frustrating to play. I recommend to add a continue option, where you can continue from the last reached level with the score reset.
The cheat from the original Manic Miner game has been put into this version. If you can't find what it is online, open the manual which is in the zip file and go to the last page. There is some invisible text on there, so highlight from the visible text right to the bottom of the page, copy it and paste it into Notepad.