Mario Starcatcher 2 is a fan game about Mario, available on many "Fan Gamez" sitez.
The principe is simple: You must make Mario Naviguate over 20 levelz and reach the Star in every of them, by making him walking and Jumping, Activate blockz and switchez, collecting coins and 1-up across the levelz to make him gain livez, and avoiding ennemiez and jumping over Gasp to avoid losing lives. The game starts whit 3 lifez.
There is no Powerup in this game (Mushroom, fire flowers, etc.). You can't kill ennemies, in the exception of a Pirana Plant (on Lvl 12), a 'Twomp' and Bowser.
Here the address of the site where I found it the first time (there is more place where you could find it, simply by searching on Google.):