Pengo

Pengo is an arcade maze puzzle game published by Sega in 1982.

Gameplay
The player controls Pengo, a red penguin as he attempts to defeat every Sno-Bee enemy on the map.

To do this, the player must crush the Sno-Bees with blocks of ice by pushing them into them, stunning the wall if they're next to it or crushing blocks with unhatched Sno-Bee eggs hidden inside them.

Ice blocks can only be pushed into free spaces. If a second block of ice is behind the ice block Pengo is trying to push, he will instead break the ice block with his beak.

If Pengo can crush multiple Sno-Bees with a single ice block push he is awarded additional points.

Over time Sno-Bees will become blobs with increased speed that are capable of crushing multiple ice blocks, taking away Pengo's ammo.

Trivia

 * The theme music for the game is Popcorn, an instrumental piece by Gershon Kingsley, a pioneer of electronic music.
 * There is a minigame in Segagaga based on Pengo, where Tarō Sega must load Dreamcasts into a truck by pushing them similarly to Pengo. Even the music sounds similar to Popcorn.
 * Being one of the earliest successful arcade titles, Pengo inspired dozens of copycat clones that all consisted of penguins pushing blocks of ice. Some titles include Pengi, Pingo, Pengon, Penguin-Kun, Pengwyn, Percy Penguin, Pango, Petch, Pilot et Pingo, Igloo, Iceball, Iceblock, Hopper, Charly Pinguin, Chilly Willy, Frostbyte Freddy, Push Push Penguin, Pengoric and The Penguin Dance.