#eproms

https://hiddenpalace.org/News/Sonic_Month_Part_4_-_Filling_Blanks_With_Sonic_2_(MD)

TCRF (@CuttingRoomWiki) & Hidden Palace present, a brand new Sonic 2 prototype for MD! This one comes between Simon Wai and CENSOR and has many differences. Special stage changes, late zone changes, and more. Be sure to check it out!

Sonic the Hedgehog 2 (Sep 14, 1992 prototype)

Mr. Tuff (Dec 5, 1994 prototype)

We have a few things to discuss in this announcement, but first we have something to share with you today. We have a new dump of an unreleased game called Mr. Tuff for the SNES! The game was developed by SCI (The Sales Curve) and was possibly going to be published by Ocean. It was scheduled to be released on the SNES, Sega CD, and Sega Mega Drive. The game was actually in a fairly complete state in the middle of 1994, but wasn’t picked up by anyone until later that year when Ocean considered picking it up for a release in March 1995. The various versions of the game were previewed throughout 1994 and were even reviewed in 1995 by DieHard GameFan magazine. The game was still teased throughout 1995, but completely disappeared near the end of the same year.

In other news, we finally opened up a Discord server! This was something that many users requested for a while since we have been clinging on to good old IRC and message boards for many years. We’ve decided that now would be a good time to open up a Discord server, since we predict a need to communicate with our user base on future happenings, projects, etc. The Discord is still in its early stages, so if you have any suggestions be sure to let us know!

You can join the server by going to the following link: https://discord.gg/RG723tU 

I’ve manged to remove the hard-soldered traces that determine chip select, address lines, and voltages for the H19 ROMs. 

There are two sockets in the design, but most implementations are new enough to use a single EA8332 Mask ROM, instead of two EA8316′s.  I had to cut a few traces, due to the late era of this board’s manufacture.  However, now it matches the style of the oldest variations, with the flexibility that was intended.