Need Android Achievement Ideas

Question

I am creating a simple (completely meaningless) Android application / system that tracks various things and gives you points for them. Points could be spent unlocking more achievements or something like that. The only thing that is hard for me to find is what can be tracked. I know that there are many things that you can still discover using various EventListeners, but these are all concrete achievements. So I'm looking for from you guys just general ideas about what you could track (REASONABLY) on Android to use in this.

The list that I still have (not given in stone or encoded, just ideas):

+The Basics -Open 10 unique apps +Around the World -"Check In" to 5 different locations (GPS) +Time Traveler -Obtain 88 miles an hour +Energizer -Recharge your phone for 1000 hours +Forever Alone -Do not receive a call or text for 5days 

Answer 1

If you can implement a fall detection algorithm using sensors:

 +Clumsy -Dropped the phone 5 times. 

Answer 2

What about

 + Talkative - Sent 100 texts a day or had 1 hour long converstions + Cool Kid on the block - 500+ contacts added + Stalker (or Friend zoned) - Calls a number more than 20 times a day with no reply from it. + Socially awkward penguin - 5 missed calls from different numbers, not returned. (use Call log) + Geek - 100 apks installed (Use Package Manager) + Troll - Makes a lot of missed calls, or disconnects calls. (Listen to phone state events) + Hipster - Listens to weird music. (Use echonest API to analyze the music files on the SD card) 

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Also: 4 Square integration , maybe?

Your application will be too heavy for the battery.