Probably because of GBA hacking being much more simple. The thing most people are actually afraid of (without even knowing it) is that z80 processor used with GameBoy/Color can't execute data from anywhere in the rom at the time. Game Boy Advance is nominally advanced version of Gameboy. The processor it has is so much more advanced that it can do stuff GameBoy/Color can't - also leading into rom hacking being so much easier with GBA games than those of GB/C.
That's pretty much it. Also GBA games have "better graphics", I guess...
I wonder why people don't GB/GBC hack more, there many more ways of doing stuff in hacking these instead of Firered/Leafgreen, and Ruby/Sapphire/Emerald, then again there more tools for GBA and I never actually seen a GB/GBC tool or resource at all really.
Actually, I'm quite familiar with everything Koolboyman has done there. I too have implemented several features that would have been impossible with the current scripting engine of the game only.
For example with battle enginge there; you may be controlling a different main character (similar hack to clothes and sprite color change in Prism) and depending on who you're controlling, the battle sprite and color of it are different.
You see that banner of Dark Energy in my signature; those two characters on the left can both be seen during a battle.
I loved Hyetology, it was actually pretty good, and I loved Super Rising Thunder, that is actually one of the best GBA jacks I've seen around here.
I just tried Prism and I think I'm in love, it's amazing, how can you switch characters from the player to the larvitar like that? How can you battle with only larvitar and not the player sending out a pokeball, it's...impressive to say the least.
Well there are Super Rising Thunder , Hyetology, and I can remember Alignment having some threads out there which felt pretty decent. But I guess that pretty much sums it, in my personal opinion at least.
Well yeah, that's partly true as well. It's almost impossible to make a graphically decent looking hack/game if you hadn't done any kind of mapping stuff before. Then again, it won't help one bit if all you do is stuck with creating simple events without trying anything new and challenging.
You should try them someday. But really, the current version of Pokemon Prism is probably the best pokemon hack out there. Not because it's a hack of gen II but the fact that Koolboyman is an extremely skilled game programmer, no other content in the forum comes even close to the asm hacks Prism hacks, expect for Jambo's 649 patch I believe.
Most of the other hackers out here don't even have a simple idea of what they're actually doing; they're just messing around with tools trying to come up with something new. It sounds kind of rude to say it like that but it's the truth.
Actually I never tried any GB/GBC hacks, I kind of played Team Rocket Edition, but when I try to speed things up like I do in GBA hacks, it goes extremely fast and I have no clue to what I'm doing when I speed things up. I try not to speed things up anymore but it became an addiction. :/
Ugh...the last thing I said in my post. It makes me sound like a ***** even though I was trying to make it seem funny. Yeah, half the time when I post and I think it sounds good, I read it after and it is just awful. Life tries to make my life miserable when I post.