Mario clock is one of the few DSiWare apps that can be helpful [bold]and[/b] fun to play.
On Mario Clock, you can play as a constantly rmoving mario by running, jumping and collecting coins. Aside from the game part you can set 3 different alarms pf which you select the audio. They can either play 1 of 3 different SMB audio tracks (overworld, starman/invincible, underwater) or your DSi sounds. The alarm sounds constantly for 5 minutes repeating the audio you chose. You can also use the snooze feature in which it sounds for 1 min and goes off for 4 repediatly for 1 hour.

[bold]TIPS[/b]
-to be awakened by the alarms easiest I recommend keeping it under your pillow.
-Once you get 100 coins, you swap players (mario-luigi or vice versa), and once you get 100 coins 12 times something...secret happens (find it out on your own).
-Hold B to run.
-In item blocka, items may be hidden.
-No need to hold down the right arrow. it moves automatically.

Playability 10/10
(nice, easy to use controls)
Utility 11/10
(the alarm does what it needs to do and then some)
Spiritual 10/10
(for staying true to the mario spirit by using 8-bit SMB sprites from the NES)
Repetetivity: 7/10
(after a while the content can get boring but not for a while)

-charizardman283