More edge scenario examples for 1.
Pausing:
- SG-1000 Bank Panic has a very similar pause glitch as SMS Batman Returns (this time it's more of 1 frame reduce per 3 frames with P, emtpy, P)
- In SG-1000 Gulkave, pressing pause once after starting the game saves 1 frame (same as Zoom 909)
- In SG-1000 Ninja Princess, pressing pause before starting the game (44th frame P in TAStudio)
won't let you progress, requiring you to power off the console.
edit: similar games with SEGA intro doesn't have lag frames after showing logo, making it easier to compare what makes this bug (seems like game developer oversight)
3.
SG-1000 (and II and III) has no visible reset button, but SMSHawk let's you input it.
http://segaretro.org/SG-1000_consoles, image with manual:
http://segaretro.org/images/1/13/Grandstand_SG-1000_NZ_Photo9.JPG
It has no visible effect which should be correct.
Tested Zippy Race, Zaxxon, Yamato, Wonder Boy, Super Tank, Ninja Princess, H.E.R.O., Gulkave, Sega Galaga, Ninja Gaiden...
However... The reset button first came in the form of
SC-3000, the computer version of SG-1000 released in 1983 which able to play SG-1000.
So... one could try it out if the reset button has impact.
edit2: from the SC-3000 doc, check image from SC-3000 link above edit)
The SC-3000H has a 64-key keyboard, and two gamepad ports. One of the keys is called "RESET" and generates a NMI on the Z80 when pressed.
And according to the
wiki page, you can play SG-1000 titles on SMS and SC-3000 (both has reset button).