- Developer: Sang Un Lee
- Website: Official website
- Release Date: 2015-07-21
- Supports: Family Sharing
- Languages: English, Japanese, Korean
- Compatibility: Requires iOS 5.1.1 or later. Compatible with iPhone, iPad, and iPod touch.
Summary
## Description
I'm flying shooter that uses the two planes alternately.
Tip.
When the gauge alternately by replacing the plane, please recover HP.
Select a myriad much you eat less items.
items 1: 1 Can I upgrade missile eat the same thing once the item. Can I eat initialize another number.
Item 2: Same as above
Item 3: Same as above
P Item: Can I upgrade power-ups bullet.
Skull Item: Can I upgrade the power-down bullet down. Andoeyo eat.
Coin Item: I can eat a lot of gold increased use of auxiliary gas.
S Item: special moves activated.
Games related to Double Force
- Mermaid Secrets12–Heartbreak
- Mermaid Secrets14–Jail Escape
- Mermaid Secrets15–Mermaid Bait
- Mermaid Secrets17-Summer Pool
- Mermaid Secrets19-Search
- Mermaid Secrets2- Love Story
- Mermaid Secrets20–Love Promise
- Mermaid Secrets3-School Drama
- Mermaid Secrets4-Sea Crash
- Mermaid Secrets5 - Sea Rescue
- Mermaid Secrets7- Save Mermaid
- Mermaid Secrets8-Love Battle
- Mermaid Secrets9–Hidden Crimes
- Mermaid Simulator 2
- Mermaid Simulator 3D
