If you were looking for a game in which you don’t have to keep a constant eye on which achievements you still need to get, then your search ends here because Alvin and the Chipmunks has only 9 achievements! And all these 9 achievements bring you 1000 points. Now that’s quite easy to remember, isn’t it?

Achievements

There are 9 achievements with a total of 1000 points.

Patron of the Arts 100G
C’mon! Spend those Stars and buy up all the items for all the Chipmunks!

Simply the Best 200G
You are the absolute best. Only one way to prove it: get 5 Stars in all songs!

Everyone grab a partner! 100G
Dancing by yourself is good, dancing with a partner is better! Complete a song in Coop mode!

Power Performer 100G
Show off your smooth moves and get 4 Munkpowers in the same song!

Go Nuts! 100G
Solo mode is the time to go crazy! Go nuts and get the best score!

Big Spender 100G
Make sure your Chipmunk look stylish and buy up all the items for it!

A perfect performance 100G
No one is as good as you. Get 5 Stars in a single song.

The Whole Story 100G
Get to know the full story and complete Story mode.

It went a little like this… 100G
Come along for the ride and complete a song in Story mode.

Source: Xbox360achievements