I've got 600 Points...

[WiiGuy]

here are the games that I've picked out, but i don't know what to do...

Mario Bros
The ledgend of Zelda
Cue Sports: Snooker Vs Billiards
ROTOHEX
Cubello
Orbient

currently i'm more towards Cue Sports...

[jnfs2014]

Defend Your Castle, if you don't have it.

If you do, Mario or Zelda.

[Lotos]

Super Mario Bros 2 Lost Levels is pretty fun.

[Macawmoses]

I'd pick one of the Art Styles, based on your list. Cubello and Rotohex are alright, but Orbient is the best, imo. All up to preference.

[SkyMyl]

Super Mario Bros. 2 is a good game to play for about 15 minutes a day. But it's also very challenging, so it'll last you for a while. =P

[WiiGuy]

I've got SMB: LL already ;)

I've been thinking about Art Style ever sence they came out on WiiWare, but i really want a game that will last me long, will Art Style keep me busy for a while, or is just a side game?