Nine Minute Mayhem

Nine Minute Mayhem is an Action Rogue Like RPG, in which you attempt to survive for nine minutes while hordes of enemies chase you and try to take you down. Its Free to download and it can be played completely offline.
Here's how to play: Hold your device sideways and use one thumb to control your movement, while using your other thumb to aim your magic projectile attacks. There are many characters to unlock in the game, and each of them have different special attacks, as well as strengths and weaknesses.
Each time your character levels up during a run, you get to chose between one of three bonus upgrades, which help you during only that run. These upgrades can be weapons that automatically fire at nearby enemies, such as cluster missiles, bolts of lightning, or an air strike. Some upgrades instead provide other bonuses, such as increasing your character's speed or giving them stronger armor to block attacks.
You also can collect gold coins, which you can use to permanently improve the strength of your characters' abilities for all future runs. By doing this you can advance further each run until you can finally beat the game entirely.
HINT: The glowing enemies that have red outlines are ELITE enemies, which means they are much stronger than normal enemies but they also drop treasure chests full of coins when they are defeated. You must attack the treasure chest to get coins to come out. Defeating these Elite enemies and collecting the treasure that they drop is essential to advancing quickly through the game.
Download Nine Minute Mayhem to find out: Can You Survive?