Quite hard to beat 5 times through
Health randomly changed at the end of the last level each time
In this game you are brought back from the dead (with the immortal line "Rise from your grave!" to find Zeus' daughter who has been captured. You have to punch and kick your way through 5 levels and then do it 5 more times to beat the game. Along the way you can transform into beasts with more powers to enable you to destroy everyone in your way. At the end of each level there's a boss for you to defeat. Once you've done that you are stripped of your powers and you return to human form once more and you start the next level.
The controls are A to punch, B to kick and C to jump. Pressing down will cause you to crouch and you can punch and kick from this position as well. When you start off you are a normal human and it can take 2-3 hits to kill an enemy. When you see a grey boar-type animal you should kill it in one hit and take the grey sphere that comes out from it. When you pick one up you will be powered-up. Your punches and kicks will now have a grey blur and your attacks do twice as much damage. If you pick another grey sphere up then you will be powered up again. You will now be able to hit enemies further away. Picking up a 3rd grey sphere is the important one and this will turn you into the beast for that level.
On the first and last level you will be turned into a wolf. Here you have the ability to shoot fireballs in a straight line and dash forward in a blaze destroying anything in your path. In the second level you will be turned into a dragon which gives you the ability to shoot a laser beam in a straight line of produce electricity all around your body, instantly frying anything around you. In the third level you are turned into a bear where you can turn anything right in front of you to stone or jump forwards rolled up which kills things in your path. In the fourth level you are turned into a tiger where you can shoot a fireball which bounces up and down or you can fly straight up and down again in a blaze. Basically you need to utilize these abilities to beat the boss of the level.
If you don't manage to get the first three grey spheres then you won't get the boss straight away. You will have to carry the level on in the search for becoming the Altered Beast. If by the third segment you have not managed to become the Beast of the level, you will have to face the boss anyway in whatever form you are in. In 2 player mode you have to work together, but you can't damage each other. You will also get 2 grey spheres from each grey boar, just be careful not to take your partner's.
When you beat the final level you will be taken to the credits and then back to the start of the first level again. The difficulty level also goes up (can happen a maximum of 2 times). But the annoying thing is that your health bar randomly changes. If you are on low health by the end of the final level then you stand a chance of recovering some, but sometimes I've gone from a full health bar down to almost none, so in effect I've lost a life for no good reason. Another thing about the game is that it is pretty tough. Even when I've given myself maximum starting health I've only managed to get through the game 4 times when you supposedly need to beat it 5 times to beat the overall game. This is very hard and to this day I still haven't managed to do it. But that's better than a game being too easy.
Another thing worth mentioning is the enemies. There are several different ones you have to face, all with their strengths and weaknesses. By far my favourite was the purple blob who would try and jump on your head and suffocate you. To get it off you had to press left and right alternately very quickly to destroy it. Highly original and impressive.
This is a very good port from the original Arcade version and it was the first game I got with my Mega Drive back in 1991. I can still play it today and get the same level of fun out of it that I always have done. The principle is very simple but it is executed very well in my opinion.