Feels like the original SMW. Not in a bad way though!
The design is okay-ish. This demo is a world 1, so expect everything to be kinda linear-ish in design. Although, it's varuied enough to actually be entertaining. That's why it recalls the original SMW; a simple design which doesn't feel like it's too flat or too complex. Maybe there are too many bonus zones, easily findable, which make this hack super easy. Again, it's not a bad thing.
The aesthetics are kept vanilla here, including palettes. Not much to say here, nothing looks awfully bad worth of mention. The OW has perspective errors.
Overall, a good demo. Not lenghty, but it's a good one.