Its alright...
Positive -
Good idea
Good concept
Good design
Pretty good music
Negative-
Most of the time when you jump on a 'Goomba' it kills you.
If you jump and move at the same time, you will stay in
this weird pose with old marios walking stick in the air!
Overall-
Awesome concept but just fix on some bugs!
other than that keep up the good work :D