We mentioned Duality ZF back in May and since then it has still been in development by Xona Games. They have released a new video showing one of the boss battles in the game it is looking really nice. They still don't have a release date set but it looks like things are coming along.
Boss Rush Trailer
Game Details
Game Modes:
Duality ZF features multiple games modes:
HOME (8 stages)
ARCADE (8 stages)
BULLET HELL (8 stages)
SURVIVAL (single stage)
SCORE RUSH (single stage)
BOSS RUSH (single stage)
HOME is the regular game. ARCADE is what Duality ZF would have been had it been an arcade. It is more exciting, more intense, and more difficult. If you are a hardcore "shmup" fan, ARCADE was born for you, but will be enjoyed by all.
Each game mode has online scoreboards.
Gameplay:
Duality ZF has high-action, intense, quick-reflex gameplay.
Simplicity:
Duality ZF has simple gameplay. Move and shoot. No bombs that blow up everything on the screen. No powerups that power you down or switch weapons against your wishes, only powerups that improve your 32-stage spread/laser weapon. Move and shoot. That's it. Playing is about skill of missing enemy bullets with skill of shooting enemies down. There are no complex controls or weapons to master. Move and shoot.
Weapons and Powerups:
Duality ZF features two massively upgradeable weapons in one: a dual spread/laser weapon that can be switched to spread or laser, or various hybrids, at will. It has 32 stages. If you can stay alive long to experience the maximum firepower, it shoots 65 individual bullets per shot, all calculated independently of one another. With a maximum of four shots onscreen at once, that's 260 individual bullets per fighter, for more than 2,000 individually calculated bullets onscreen at once with eight fighters.
The powerups have an artificial intelligence system that lures them to the players most in need, to always promote a balance of power. These are guidelines only, and do not need to be followed. Upon final death, the remaining powerups you would have had, had you had an extra life, spit out to all remaining fighters and friends. The final fighter left standing will have be boosted in powerups to help battle out the remaining fight on its own. (Also read the "revival" section.)
Revival:
Lost fighters and friends are revived at the beginning of each stage, so when you are the last fighter standing, try to beat the stage and kill the end boss to bring everyone back.
Control:
The Duality ZF fighter has the maximum and most responsive control possible. It is extremely agile and powerful. When you die, it is your fault, not because of poor controls or a slow fighter. We challenge you with challenging stages, not with an inferior fighter with inferior controls, to realize your true 2D shooter potential.