(PSP) Strikers 1945 Plus Portable

Striker 1945 Plus is a remake of Strikers 1945 II, originally released on Neo Geo MVS arcade system in 1999, and to celebrate the 10th anniversary Arc System Work published the game on PSP.
Despite being a vertical shooter, the Plus version is played on horizontal screen but in a 4:3 similar tie-ratio with all the info (score, lives and bomb left) put on the side.
There are six different World War 2 airplanes, each one with its own Super Shot, a power shot that can be stored and fired by holding for a while then releasing the fire button.
Strikers 1945 Plus Portable was physically released only in Japan.