Current MobyGoal: Help us reach 250 documented ZX81 Games
Something to collect.
Bounce off that to jump higher.
Watch the spikes.
Loop the loop.
Speeding through a tunnel.
Rings to collect.
Take the platform.
A bit of rain.
Meeting Doctor Eggman.
Avoid the giant ball.
A familiar scene
If you get hit by an enemy or obstacle, your rings will spill everywhere
Monitors like these hold bonuses such as rings, lives, or invincibility
Sonic dashes through a loop
Depending on how high you jump at the end of a level, you can discover secret bonus points
Special Stage - Find the hidden Chaos Emerald!
Finished the Special Stage
When invincible, you can plough through anything!
The spikes on this pole rotate around - time your moves!
Sonic can even break through certain walls
The insidious Dr. Robotnik and his giant wrecking ball
Robotnik is toast!
Watch out for Caterkiller!
Some platforms in lava sink, and even set on fire!
Push the marble block onto the switch to lift the spike trap
These blocks fall from the ceiling and can crush you!
Marble Zone clear!
In Anniversary Mode, you can spin dash, like in Sonic 2 and 3!
Time your jumps, or get scorched by lava!
Lava occasionally bubbles up and lifts you into the air
These lamp posts act as checkpoints for Sonic
Break through these marble blocks with a spin jump!
Spring Yard Zone is chock full of all sorts of traps
Sonic bounces around the level like a pinball!
Don't get crushed by these moving blocks!
These spikes rotate around quickly, be sure not to get hit!
These large gray spikes are much slower, but just as painful!
Sonic discovers a secret area
The title screen
Sonic's pretty fast for a hedgehog...
Gravity? What's that? I don't need no stinkin' gravity!
First stage completed
This is a Special Stage; that glittering gem up there is a Chaos Emerald. There's 6 of them in the game.
After this shot, Sonic just HAD to do the Highlander joke..."There can BE...only ONE, Dr. Eggman!"
Destroying one of Eggman's capsules will free a bunch of animals.
A nice tour of the Marble Zone...Sonic decides to stop for a sec and enjoy the scenery.
Wait for that pillar to rise...
Let's see what happens if I push this block...
Time to hold your breath!
A bonus level
Beware the spikes!
Over hot lava
Jump on the tree.
Oops! I haven't any rings!
iPhone title screen.
Main Game title screen... It's Sonic!
The familiar Green Hill Zone stage.
The game can be played in an optional letterbox mode.
Spinning around a loop.
Rolling down a chute.
Completing a stage.
Giant enemy crab!
That's a big ball and chain!
Saving woodland critters.
Marble Hill Zone.
Pushing a block onto a switch.
Watch out for lava.
Nice green hill.
Spring Yard Zone (In letterbox mode)
More Spring Yard.
Watch out for the purple baddie.
Completing Spring Yard Zone stage 2.
Killed by Doctor Robotnik.
Star Light Zone.
Fighting the fan!
1 stage completed
Robo lady bug
Spikes on tree
Spikes on bug
Starting off in the Green Hill Zone.
A hidden monitor grants Sonic invincibility.
While invincible, enemies cannot hurt Sonic.
Sonic can speed through tight tunnels such as these.
Collect 100 rings for an extra life.
Watch out for Piranha robots jumping from underneath.
When you finish a stage, your points are tallied up.
If you jump into the big ring that sometimes appears, you can enter the constantly rotating Special Stage.
Special Stages can earn you mysterious Chaos Emeralds as well as continues.
Be wary of the rotating spikes on the floor.
Dr. Robotnik is out to get Sonic with his wrecking ball.
Robotnik fails, not for the first time.
Sonic frees his remaining trapped friends.
The Marble Zone has sinking platforms which trail lava.
Steep slopes give Sonic plenty of speed.
Watch out for these crushing glass pillars!
Marble blocks drop to help Sonic cross the lava.
Sometimes, Sonic will need to ride moving marble blocks.
Time your jumps to get past these shifting pillars.
Sonic can break through these shatterable marble blocks.
Some areas rain lava pillars onto Sonic - be careful!
Crossing another river of lava.
Sonic can stand on these retractable spikes to reach higher places.
You'll have to work quickly to cross these two weights.
Robotnik returns, aiming to burn Sonic to a crisp!
The Spring Yard Zone is full of springs that bounce Sonic all over the place.
This spring will bounce Sonic into bumpers, like a pinball machine.
Wait for these platforms to sink, then go to the lower level.
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