I played through Super Bonk today based on this thread. I had played bits of it in the past, but never really attempted to finish it.
In all, it's an extremely easy game. I don't think I died until level six, which is the last level. However, level six is an absolute pain in the ass. I won't spoil anything for those who haven't played it, but if you screw up once inside King Drool's tower, you're pretty much hosed. I had 10 lives and pretty much wasted them all after I missed one key jump.
Anyway, about the game itself, I wouldn't say it's terrible, but it's certainly my least favorite of all the Bonk games. The levels just don't have a lot of character, and I really miss the prehistoric theme, which was only present in a small handful of levels. Bonk in modern times and in space is a funny concept, but after a while I was just pining to get back to the jungle. In addition, too much time is spent roaming around bland-looking mazes and inside the intestines of enemies. Seriously, it's as though the folks making this game saw the inside-the-dino level of Bonk's Adventure and became obsessed with it.
Also, what's with all the bonus levels? There seems to be one about every thirty seconds; sometimes more. It really breaks up the action and gets seriously repetitive.
As mentioned above, the way Bonk moves and bonks is kinda sluggish, and the music lacks the charm and tunefulness of the first two Turbo games. This one reminds me a lot of Bonk III CD, both in theme, gameplay, and audio.
So that's that. Next I think I'll try to finish Super Bonk 2, which I always considered to be a much better game.