Well that's a bigger post than I imagined...
Since you mentioned the Nikkei-400, it looks like Sony is about to get booted from that, think I didn't see it mentioned on gaf, reject if old:
Bloomberg
The birth of climactic Robot Battles!
In this action game you take control of a "Battle Robot" to defeat all the enemies of a stage. Collect and power up various weapons to take control of the fight!
Each stage allows you to chose between the simple to control "Balanced Type" which has average stats, the "Power Type" which excels in attack and defense power, or the mobile "Speed Type". Gain the advantage by choosing a robot that fits your style of play or the stage!
Control a Battle Robot and crush your foes!
The goal of the game is to clear each stage by defeating all enemy robots in order to move to the next one. Stages can also be replayed by choosing "Retry".
7 Types of weapons bring diverse offense, flashy Special Attacks included!
Battle Robots can be equipped with 7 types of weapons. The "Sword",capable of short range attacks, and the long-ranged "Gatling Gun" are available from the start. Joining them will be a "Laser Rifle" sporting high damage single shots, the "Hammer" with charged-up strikes, "Grenades" that inflict area-of-effect damage, "Sensor Bombs" that are set to the ground and blow up your enemies when they approach and a "Shield" that protects you from enemy blows. Robots can be equipped with a different weapon in each hand. When your Special Attack Gauge reaches its maximum, you can unleash a unique attack based on your equipped weapon. Annihilate your enemies, making a big comeback!
Replay value through more than 100 stages!
Batlle through 6 areas holding tough boss robots in the game's main "Normal Mode". Depending on how you do, you will be able to collect Gold, Silver or Bronze ranks, providing replay value and never-ending fun. Additionally, there will be a "Challenge Mode", testing your skills with limits like a "sword only" run. The "Survival Mode" tasks you with playing through specific stages with only a single life. All in all more than 100 diverse stages await you!
Join forces in local play!
Up to 4 players can enjoy the game at the same time through the local play feature if they own the game. All modes are available. Overcome stages that are hard to beat alone with the help of your friends!