I mean you CAN technically hunt it in Red/Blue... if you can solve the most deranged RNG Manipulation puzzle ever discovered that could brick your game with one wrong move (I mean, I solved it, but geez I have no idea how I did it)
You don't even need the gb operator, all you really need besides the game and a charged gba is time, patience, and an internet connection. ACE is a pathway to many abilities some consider to be... unnatural.