The best replacement for angry birds is bad piggies.

The best alternatives to angry birds are rated as following:
★★★★★  bad piggies
★★★★  pigs
★★★  worms
★★★  zombies games
★★★  flappy bird
★★  minecraft
★★  pokemon
★★  angry birds hd
★★  tetris
★  angry birds lite
★  cut the rope
★  annoying orange
★  zombie pigs
★  rio
★  angry birds
★  my little pony
★  tiny wings
★  candy crush
★  angry pigs
★  super mario
★  mario game
  angry birds rio
  temple run
  annoying orange game
  crush the castle
  fruit ninja
  anony orange

Your alternative for angry birds is not listed? Suggest!
Speaking about angry birds, one probably shouldn't forget about evan.

Other search terms related to angry birds and their ratings are:

★★★★★ evan
★★★ chrome
★★ google chrome
mighty eagle
You have in mind a companion for angry birds and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of angry birds in all years. Click on graph for more.
angry birds
bad piggies