Very good presentation, graphics, music and sound!
A few suggestions about the gameplay in this alpha demo.
The collision detection between jeep and rocks is maybe too strict, or the jump not high and fast enough. If the jump were a bit higher (and quicker, it is a bit slow) it would be easier to avoid the rock and also avoid incoming bombs at the same moment. In many action games like Mario you can change direction while jumping, this is not very realistic but it would also enable people to avoid bombs while jumping.
(This could be down to personal taste tough... I remember playing the old game Moon Buggy and a James Bond game (Diamonds are Forever) on the C64, and they have the same kind of controls and movement as your game.)
Edit: Whoops you can actually change direction while jumping in your game too!
I also thought that maybe the graphical contrast between jeep/bombs/rocks and the background could be a bit higher, and the rock a bit bigger so you can see better what is going on in different parts of the screen at the same time.
Lastly as an idea for an extra weapon, you could add a diagonal shot towards the right and up, so you can still shoot those planes. Or maybe you already have such power-ups planned. ;)
A few suggestions about the gameplay in this alpha demo.
The collision detection between jeep and rocks is maybe too strict, or the jump not high and fast enough. If the jump were a bit higher (and quicker, it is a bit slow) it would be easier to avoid the rock and also avoid incoming bombs at the same moment. In many action games like Mario you can change direction while jumping, this is not very realistic but it would also enable people to avoid bombs while jumping.
(This could be down to personal taste tough... I remember playing the old game Moon Buggy and a James Bond game (Diamonds are Forever) on the C64, and they have the same kind of controls and movement as your game.)
Edit: Whoops you can actually change direction while jumping in your game too!
I also thought that maybe the graphical contrast between jeep/bombs/rocks and the background could be a bit higher, and the rock a bit bigger so you can see better what is going on in different parts of the screen at the same time.
Lastly as an idea for an extra weapon, you could add a diagonal shot towards the right and up, so you can still shoot those planes. Or maybe you already have such power-ups planned. ;)