Here what i remember: It about 20 years ago MC is a boy that riding a robot He have 2 female companion ( one of them is wearing thick spectacle) They have an opposing antagonist that got the other robot ( that guy got a girl beside him too) Y think i remember the third robot was a phoenix and control by a shield? - this robot was heavily chased by both MC and antagonist. I think all three robot are suppose to merge to be the best robot (not sure) with MC holding the best part. Well i think that all i remember.
https://myanimelist.net/anime/2084/NG_Knight_Ramune___40 https://myanimelist.net/anime/1411/VS_Knight_Lamune___40_Fresh https://myanimelist.net/anime/2085/...X__Biku_Biku_Triangle_Ai_no_Arashi_Daisakusen https://myanimelist.net/anime/2087/VS_Knight_Lamune___40_Fire