The game was fine for what the patform offers but it had some bugs and some design decisions that ruined it.
The first door remains open after you die, this was a good adition but I had to go all over again to get the boots. I think a continue of any kind would helped with the overall expirience.
Some times the character just wraps around the screen. Probably an overflow of a byte or something. I died this way by climbing a stair. In fact I died 3 times in the row on this stair and I quited the game.