I made the multi layer background parallax. Focus on background when it jumps.

and also a braking animation.

but I dunno why that river layer goes in opposite direction.

The next two levels are completed and only needs a boss fight.

These are the changes in the level selecting screen.

Up and down keys or buttons change the Act. And also now it supports English. And it's no longer using that purple oval from sonic1 for level cards. This new thing comes from SonicHeroes.

Majin Sonic Boss From Sonic FGX Ultimate

I added the Buzzbomber badniks.

The fly in a direction and shoot if detect the player then turn back and don't shoot untill next stop.

Super Eggman

I made the crabmeat badniks.

They move and when reach a block or empty ground they shoot a canon and turn back.

And I tried to make a different animation for it than what Sonic 1 had.

This third GreenHills act is a intesection between Marble and Labyrinth zones Because in this story Sonic will take the path to the left of the island and in the map that shown in 8bit version the part across the marble zone is covered in yellow stones.

Some Screenshots of Sonic Ultra by Team Ultra! Download and Play today: https://gamejolt.com/games/sonicultra/882189

I installed Linux.