Good, BUT
Pretty good if this is you're first game? Pretty good either way. Though the biggest problem I have - and it's a huge one - is the way the PC moves. It's far too slow, especially when you're jumping. If you walk in any one direction it takes ages to gain speed, and if you jump while you're still walking slowly you have to wait for the PC to slowly sink to the ground again. It just doesn't feel dynamic playing it. It feels pretty boring. Fix that and you could have a great game here though!