Good idea and pretty fun to play but way too easy to soft lock and I nearly quit completely before I left the first grass patch because I didn't think at first that you could roll the apples. It was only by chance that I discovered it. It was also really annoying to land on stone and not being able to do anything about it except quite the game and start over. I know it's a rage game, but it's still a little brutal, especially when you need to discover a new mechanic/way of manipulating the gravity of the apple and you are punished when you try to experiment. Being a rage game is fine, and making challenging and punishing stuff is fine, even leaving players to figure stuff out for themselves is fine, but you need to reward players for experimenting not punish them. If you're present a player with a new area, like when you have to drop onto the edge of a block to gain momentum as you fall, you need to allow space for mistakes in those areas so that players can work out what you even want them to do. Either that or just tell them but I don't think you want to do that with this style of game.