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|Released||August 26, 2008|
|Awards||Jay is Games - Best of 2008 - Audience Award|
|Game Type||Main game|
- Interact with the environment
During the game, the player can only affect gameplay by pressing the space bar, which will affect all interactive objects and enemies in the level. The tribesman continues to walk forward no matter what, and the player must use all the things in the level to help him make it to the end safely.
- Affects various objects and enemies
- Walking blocks - Walking blocks are enemies that are powered by a small internal flame. It can be temporarily stunned by pressing space to make it fall apart. Can only be killed by falling gates.
- Peacock guardians - A variation of the walking block that can't be stunned.
- Dragon guardians - Enemies that reverse direction of movement upon pushing the space bar.
- Jumping guardians - Jump when you press space.
- Flying guardians - Repeatedly pressing space causes them to fly up.
- Laser guardians - Shoot a laser. Rotates when space is pressed.
- Crusher guardians - Block-shaped guardians that fall to the ground when the spacebar is pressed
- Gems - Five bonus gems are hidden on each level, and are usually placed somewhere that is hard to get to. The five gem colours are: blue, pink, red, green, and purple.
- Cage - Traps the red feather tribesman in three-barred cage when stepped on. The player must press the space bar to release the tribesman. The red feather tribesman is still vulnerable to damage in the cage.
|Jay is Games||2009||Best of Casual Gameplay 2008||Best Simple Idea (Browser games) game of 2008 - Audience Award||Won - First place (22.3% of all votes)|
|Jay is Games||2009||Best of Casual Gameplay 2008||Best Simple Idea (Browser games) game of 2008||Nominated|
- Their are three cameos, each in the form of a block. The head of Hot Air, the Black Ball from Twang, and face of the green troll all appear in blocks.
- The name "Onekey" is named appropriately due to the fact that gameplay is prominently based on pressing "one key", which is the space bar.
- Onekey's last level is highly similar to Rustyard's, as both last levels include lots of lasers the player must move carefully to succeed.