Kenzen Robo Daimidaler, Fuuun Ishin Dai☆Shogun Recommendations
Both have the same mecha, harem and ecchi genre.
Both have the same guy character who is a delinquent.
One the main guy in one anime is still a virgin, while the main guy from another anime is..................I don't know, maybe he has gotten laid.
The main girl character in one anime has to serve as the guy's play thing......to increase his "Hi ERO" powers, while in the other anime the girl co pilot serves as the guy's.............I guess we'll find out.
The antagonist in one anime where.....let's just say on the horny side, while the antagonist from the other anime where basically on heat.
The same situation where there is a troublesome guy who get's to operate a mech and a girl who get's to be the guy's co pilot, plus a whole lotta ecchi.