#1 Oedo Trigger is a first person shooter similar to their previous game Harem Trigger. By shooting the female enemies you strip them and completely stripping them defeats them. Meanwhile, most enemies will rush towards you and try to grab you. If they succeed an animation will play, and you have to break free via a QTE. Taking too long to escape or getting grabbed too often will lead to a defeat.
#2 The main character was living an ordinary life, but a mysterious girl he met on the street asked him to help her. He accepts and is suddenly transported back in time to the Edo period ! He ends up fighting with a ray gun against a large number of attacking girls!