Obsy Runner is a platformer arcade game. While the general concept is usually simple, it is quite fun and challenging. The players' goal is to complete levels by controlling the blocks and overcoming various obstacles.

This particular game has 20 different levels, and players try to complete them in normal mode, while in survival mode, they only have 10 lives to complete all 20 levels. In competitive mode, players have unlimited lives and try to complete all 20 levels in the shortest time possible to be on the leaderboard.

Players can make a series of moves to overcome obstacles and defeat enemies in the game by controlling the blocks. These moves include various skills such as jumping and changing direction.

In the game's normal mode, players must complete the 20 levels sequentially. In each level, players will encounter many challenging obstacles and reach flags at the end of the level. Completing each level is necessary for players to access the next levels.

In survival mode, players only have 10 lives to complete all 20 levels, and this mode is designed to test their skills and provide a more challenging gaming experience due to the limited number of lives.

In competitive mode, players aim to complete all 20 levels in the shortest time possible. This mode is designed to test players' skills and speed and to place them at the top of the leaderboard.