Ah yes, Bangai-O. I'll second the mention of it being an action-puzzle platformer. Some of Treasure's best stuff in terms of level and game design, which is strange considering their big claim to frame is all the wacky boss fights they come up with. In Bangai-O's case, the boss stuff is not really there, but due to how crazy the game already is you hardly realize it's gone. Also, Bangai-O also has this unwritten goal of putting enough missiles on-screen to slow to a crawl whatever console it was on; a goal easily met, even on the Xbox 360. It's definitely worth a look at, just for the experience of crazy it is, and how powerful you feel when the game starts to click (for reference, the guy in that youtube vid wasn't very good, though he probably got better at the end).
I feel both Valley games are in a weird place. I feel the "incomplete" feeling of the first game I think came from how there was no true end game. Sure, you managed to crush that overlord into paste, but there was always the next big guy to take his place, so eventually the game turned into:
crush the lieutenants
crush the overlord
rinse, repeat
with the only two hurdles being leveling up your spells, and pushing the wind back a couple tiles. Note that pushing the wind back in some cases is optional, as I remember at least one person on a multiplayer server who was crazy enough to stomp the lieutenant under the windstorm. It kinda turned into a race actually, cause the guy would clear an entire continent all on his lonesome, despite the fact the difficulty was cranked up to one spot below The Chosen One.
That said, I still think the exploration part is one the first's game's strong points. Searching for materials, finding bonus missions and survivors, and sometimes pushing the next level of the caverns to see if you can take it. I'm surprised there wasn't more incentive to go deep to the point where you needed a heatsuit just to keep going, though part of it was that the monsters scaled really hard and would curbstomp anybody who got down that deep. Faced with almost certain death going down deep or going elsewhere and not coming back, people would usually go with the "I live" option. There needed to be some reason for people to risk the plunge, especially when a lone bat down there could chew a third of your HP before you kill it.
Hmmm, I didn't make my point about the exploration clear. I liked it a lot, a feel there's plenty of room to grow there.
Umm, as for Valley 2, I'm not quite finished playing a round of it, so I can't give a full view of it. It certainly has more focus on game goals that the first game. I do like the different mage classes, and the abilities they bring. Even the classes I think of as clunkers have their uses (fist spells OP).
The enemies demand a bit more respect, since they have a lot more tricks up theirs sleeves. Now if certain enemies could actively dodge spell shots, or try to react to certain player actions, I think there's potential for really memorable critters.
On the flip side, the bosses. So far I've only dealt with the henchmen, aaaand they're kinda meh. While they can cast a different number spells and have different quirks (Lilith's counter), they're samey in the sense that have almost zero movement. I also feel like each henchman should have a theme going. Vorgga seems the type to be in an open room by himself, challenging the player to a one-on-one duel against a very mobile opponent. Fanzara seems the type to throw monsters first at you, and attack you with support from other creatures. Wordrak seems the type to be slippery, teleporting around to get a better vantage on you. Lilith seems the type to try to overwhelm you with magic, while at the same time being in terrain that favors her. I haven't met Elder, so I don't know what his deal is. And I haven't had any of the final fights with the henchmen, so I maaaay be jumping the gun a bit. It's just that right now, the henchmen are just a fist spell away from being utter chumps.
I don't mind the strategic part of the game, though I am certainly feeling the dread now that Demonica out on the field. His presence is pretty intimidating. That said, I'm not the best strategy player, though I think I can manage this bull in the china shop.
Ugh, this post is running too long. I'll continue it later.