Entertaining 1:30 for sure. This has a wonderful layout and is fairly easy to understand. You could build on this quite a bit but that doesn't detract from what it is at all. Solid game.
I'd really enjoy this more with a leveling / keep a portion of your last life reward so that you could venture further and build a character instead of starting over each time from scratch.
Well I've completely cleared the first two levels and don't have enough money to buy a suit to get through the walls in level two to find the key or additional resources. Good idea but really need to put some thought into gameplay.