Bloop Boom! (free)

射擊導彈，打老闆，收集大功率UPS！是最好的！

In Bloop Boom! you must defend against the strange sea creatures that surround you! Fire you mighty missile to destroy them, but watch out because they'll be coming for you too!

Compete on the global leaderboards against friends and strangers to become the best Bloop Boomer you can be!

If you want to show the developer some love, you can purchase the paid version. You will not get anything different from this version, but you can sleep soundly knowing that the dollar you spent meant a lot to some college kid out there. He'd like that.