To get 3 stars for your blitz attack you have to score 120,000 points without dying. The counter will carry over through stages, so you can start on stage 1 and get it at stage 3 or 4. The big thing is to not die. If you die, you'll have to keep track of the points yourself from whatever your score was the moment you respawned.
Special note: Go to your "Controls" options. In there, you'll see your control layout with regards to the Sega Genesis 6 button controller layout. If you assign a button to the Sega Genesis "X" button command, you'll be able to do upgraded Blitz attacks without needing the stars.
First, in order to perform the respective Blitz attack, you'll need to press and HOLD whatever button you assigned to the Genesis X button (let's just call it the X button) so press and hold the X button, then perform an appropriate motion (it's different for each character).
Second, why use these attacks? Because they're devastating and make the game much easier, allowing you to build your points safely while worrying less about dying.Now then: I'll be listing everyone's special blitz's here using the X button.For Axel:
Hold X, Press Forward, Forward, release X. (this does a bare knuckle, but one that covers a greater distance)
Hold X, Press Down, then Forward, release X (pretend you're doing a Street Fighter Hadouken). This move covers both his arms in flames as he does a 360 spin forward.
Hold X, press Back, Down, then Forward, release X (pretend you're doing a Street Fighter Yoga Flame). This move starts with the previous move and then adds more distance and ends with a rising uppercut.For Blaze:
Hold X, press Forward, then Forward, release X. (it's the same as the basic forward forward x, but covers more distance)
Hold X, press Forward, then Up, release X. She does an upward flip kick with energy surrounding her legs, this can hit for multiple hits.
Hold X, press Down, Forward, then Up, release X. (basically half circle forward from down to up) Takes the previous move and adds to it by coming down to a forward slide after the upwards flip.Sammy/Skate:
Hold X, press Forward, then Forward, release X. Same as the standard blitz but covers more distance.
Hold X, press Forward, then Down, release X. He rolls forward, damaging for multiple hits.
Hold X, press Up, Forward, then Back, release X. Same as above, but adding a flash split kick at the end of it.Zan:
Hold X, press Forward, then Forward, release X. Same as the standard blitz, but covering more distance.
Hold X, press Back, then Up, release X. Zan does a double dash version of the standard blitz attack, moving in a downard Z shape motion.
Hold X press Up, Back, then Forward, release X. Zan does a triple dash version of the standard blitz attack, zigzagging in the Z motion from above, but adding a 3rd zigzag to it.
Some tips for the game: On the "press start" screen, Hold UP, and A, then press start until the next screen loads. This allows you to choose Roo without needing to unlock him.
Also, highlight "Battle" and hold UP and A again, then press start on options (since pressing and holding up moves your cursor from Battle to Options). This cheat allows you to enter a stage select screen (so you could start on stage 4 if you wanted or whatever stage you want).
If you can fire up a second controller and "join" the game by pressing start anywhere in the menu or title screen, when you go into the options (either by the above cheat or not), point the cursor with player 1 onto the "Lives" option, and then with the 2nd controller hold UP, X, A, B and then (continue holding those buttons) with the first controller increase your lives count, up to a maximum of 9.
Some tips for getting points... If you're playing level 5, find the secret rooms (you can see them as cracks in the wall or the floor) as they lead you to "gold bar" filled treasure rooms that you must fight your way through.
Also, what https://www.trueachievements.com/FreakerDelle.htm
said in his solution about Super Skate/Sammy is valid, so it's a good solution if you'd like to use it. The trick to getting his super punch is to begin the game and get killed without getting any points. Then when you respawn, you'll have a rapid fire punch. If you go to "help & options" and then change your "controls", have the Y button (or any button you want) perform an "Attack" but make sure to click on the "rapid" option and set your rapid fire all the way to the max. With your control's rapid fire on top of Super Skate/Sammy's rapid fire, you'll be pretty beast from that point on.
Feel free to submit info/comment and if you add any tips, I'll incorporate them to this solution and shout you out for it.