Wow, clipart gets no love hehe. I liked the artwork on this arcade: http://forum.arcadecontrols.com/index.php?topic=100445.0 and wanted to do something similar. Besides, I liked the idea of all these game characters running around on "The Grid".
I have no problem with adding characters, but if your idea is to interface them with the grid, I have a few suggestions. Use fewer but bigger characters. If you have any experience with photoshop see about tweaking the brightness of the characters so they look like they belong and not stickers.
- The 2 players are spread out to make sure there is plenty of elbow room - and because I have plans of putting a clampable steering wheel on the front. That's why the big open space in the front.
Spreading them out is fine and makes sense, but you might want to get rid of the angle. Keep the control panel angle, but put the players parallel to the screen. I am a fan of utilizing the maximum space given on control panels. I hate when there is an 8” border of nothing on the outside of CPs.
- 3 volume buttons for up/down/mute - didn't go with a knob partially because I couldn't find anything out-of-the-box and didn't feel like building my own, and partially because more RGB buttons means more pretty in "attract mode"
A very simple hack for volume control is to splice an audio potentiometer into a stereo extension cable. You could then have the adjustment rod extending into the control panel. For added LED fun you could choose some sort of transparent disc (of tron) as the adjustment knob. With that you could have 1 or 2 leds on the underside lighting up the volume control.
If you are dead set on buttons, lose the mute button. If you must shut up your machine immediately, you have pause.
- Favorites and Genre are built into Hyperspin, so I wanted button that took advantage.
One very cool thing about RGB leds is in most front ends you can have different main buttons do different things and light up to show it. On my CP my game select buttons in mala glow red, my game information button glows blue, I think I made my random game button green, and then I have skip by page and by letter another 2 colors.
With RGB led buttons you need fewer dedicated buttons since every interface can be customized via the LEDs.
- dedicated screenshot button mainly because I wanted something to balance out the Favorites/Genre on the other side.
Lose the screen shot button and replace it with Exit. I know you have navigation buttons, but just lose those altogether. Handle game selection with player 1 and 2 buttons 1.
- the 9 player buttons include Player 1/2 and Coin. (the 2 top buttons). They will also be Start/Select in NES and similar consoles. then you have the normal 6 buttons, and I added the one at the bottom to do a more faithful Neo-Geo layout when playing those games.
Separate player 1/2 and coin. 4 inches above the perpendicular button layout I suggested should suffice.