Damn! I wish I had all of these sucky games so that I could chime in!
Out of Timeball, Deep Blue, Gunboat and Drop (Drop it Like it's Hot) Off- the only one I have is Drop Off- and it's not the worst "turbo chip" that I have. Battle Royale, Champions Forever Boxing, Davis Cup Tennis, Double Dungeons, Night Creatures, Order of the Griffon, Shockman, Tricky Kick, Turrican, TV Sports Basketball and Yo Bro- all of these I find less playable than Drop Off!
If I can include japanese hucards- Titan, Genpei Toumaden and Bullfight are quite deserving of the hall of shame as well. HAHA I probably listed all of Esteban's faves!
Well of those you mentioned, here's how it is imo:
Battle Royale: Man this was a blast to play back in the day, but it hasn't aged well at all. I tried to play it the other day, but couldn't get into it. I was like NOOO, where's all of the ass that this game used to kick?
Champions Forever Boxing, David Cup Tennis, and TV Sports Basketball: Can't comment on these because like most sports games, I avoid them like the plague.
Double Dungeons: I remember my brother and dad seeing the adverts for this game and hyped their expectations for this game up way to high, only to be sorely disappointed. I on the other hand found it somewhat enjoyable. Sure it gets kinda old fast, but it's good for a simple mindless maze crawling game.
Night Creatures: Haven't really tried to play this one either, just a brief play of it via Magic Engine, so can't comment on it.
Order of the Griffon: Not a bad game really. Sure it takes a lot of patience and time to get into, but once you do you will be hooked. Well that is, if D&D type rpgs are your kind of game; it's not for everyone. We still have old maps and passwords my dad wrote down in a drawer at home. My dad played many hours on this one, though admittingly, it hasn't aged well.
Shockman: Ugh, for a megamanesque type game it's not too terribly bad at all It's just, well, it gets old quick. The stages are boring, bosses are not that hard and there really isn't too much substance to this game. I do however love the first stage's music (after you get past the "prologue"), and the third one on the PCE-CD is awesome!
Tricky: Hey! Don't be bad mouthin' one of my favorite games for the TG-16! Seriously though I really do love Tricky Kick, there is a lot of fun to be had there (WAAAAY better than Timeball), although you need to wait at least 3 months after beating it to want to play it again so you forget the solutions to the puzzles.
As for Turrican and Yo Bro, I have played neither nor ever had the desire to. Turrican doesn't look too bad, but Yo Bro? Damn, hell no.