Check it out, Dreamcast Aquarium! =)
Look out, a big Pirhana!!! =O

I'm having some fun. Got some more stuff for the Dreamcast:
Thumbcovers for the analog stick, a couple diodes (one blue, one slow color changing), a usb-c power board, usb-c cable, & a power supply (not shown).
Installed the board & tested it before buttoning it up & removing/replacing the power cable. (Original orange diode still in place.) I don't really need the power board. The old one was working fine, & I'll keep it in the shelf. But I need to get some USB-C power gear anyway, so, may as well. It will get a lot of heat out of the case, since the transformer rectifier thingy will be on the power strip instead of inside the dreamcast.

It's got a couple extra headers (3.3V iirc) for fans, diodes, etc.
I won't get to the diode replacement today, but I tested them in the light-pipe when I had the top shell off. The blue one:

Tron vibes:

The color-changing diode slowly rolls through a number of colors.
I like both. I also like the original orange one, & I might try to find a slightly brighter one of those & try that too. It's easy enough to get to, even though it's solder every time, if I want to 'roll' them to see what I want to stick with.
Power supply & everything seemed good, so put it all back together.
Nice & clean filler piece comes with the power board:
Plugged into a new power supply with three USB-C ports, & one older usb port.

There are two zones, & one can't do as much as the other. Also, the ports within each zone will cycle off/on, if the other port in the same zone activates or deactivates when the original port is active. This is to allow for proper voltage regulation. So you could accidentially power-cycle the dreamcast that way. I plan to dedicate one zone (high-power zone) to the dreamcast & not use the other port in that zone, so it should be fine. I'm able to plug my M-Classic into the older usb port in the other zone, & I have another charging cable coming from the usb-c port of that zone for something else (maybe, if it will do it, haven't tested that yet). Having something else in the same zone as the m-classic means that I could accidentially power-cycle the m-classic or have it cycle unexpectedly if I have something else charging on that other port & it either stops charging or starts charging again, that maybe could do it, but cycling the m-classic is less of an issue than unexpectedly rebooting the dreamcast, & I could always just temporarily clear that plug before playing if I was worried about it.
Popped on the silicone analog cover over the stock plastic cap, & it might be ideal! Haven't had any real play-time on it yet, but does not interfere with the travel, seems like it wants to stay in place, & seems comfortable & grippy. Seems much better than the stock plastic cap. These are for the Switch joy-con thumbsticks meant to cover over the existing cover (not to replace a missing cover, those are much too small for this).
Did some more work on my library:
Added 240p Test Suite, very helpful for dialing in the display.
Also found out that Bangai-O has a VGA patch now, so loaded that up.
'Fish Life' is the aquarium game. Is this related to Dream Aquarium in some way? I tried to search & "a.i" says 'no', but I'm not so sure. I have Dream Aquarium on my PC, & they seem very similar.

-( #21: Marvel Vs. Capcom II )
-(NBA Hoopz & NHL 2k2 should have been shown last time.)
-Found a Mega-Man collection, which seems pretty cool.
-Also found a Castlevania collection but it didn't run very well, so I got rid of it.
-Wipeout release got an update to 2.2

-Played some Sturmwind, Sturmwind still gets it...
-Still having fun with Tokyo Xtreme Racer 2...
One thing I wanted to mention about the GDEMU is that it cuts most load times in half. Any time where the system would have been reading from the disc, takes about half as long now.
Going to chill with my new Dreamcast aquarium for a while, bloop bloop

=)