Diadra Empty (English version) Extra 1-5 clear
Diadra Empty (ディアドラエンプティ) is a free scroll shooting game. Player can move freely around a huge area.
Visit a store page here
http://www.desura.com/games/diadra-empty
http://store.steampowered.com/app/284220/
Visit a developer's site here.
http://www.h7.dion.ne.jp/~icewind/yuki-usa/index.html
The game has been released first time since 2008 in comiket 73.
The English version has been published by Rockin Android in 2013.
To unlock Extra stage, player need to cleared hard mode (True level).
http://youtu.be/oyZW-OfSEII
Extra level including of 5 stages. Enemies and bosses are based on Hard mode (In game, called "True level"). Each enemies waves are more intense than True level.
Player have option level 2 from without upgrade from start point. Collecting coins much as possible is so important. If player kill bosses quickly, enemies will spawn more. Player can collects more coins.
After player finished Ex stage 4th, If player have score less than 400,000,000. The game will end with out Ex stage 5.
To collect enough score, player need to activate B.S.S. mode. Kill enemies to get score multiplier and then, kill boss quickly while multiplier still exist.