Download it
here! Extract the zip anywhere and you can open it from there. Make sure folders follow correctly, there should be a venture folder which has a files folder within it where the game's graphics and sound are. The game and the map editor is in the venture folder.
Currently there are a total of about 40 levels, there are 11 levels in each world (where level 11 is always the town).
After level 5-1 there are no more levels (except one that my nephew made that is on 5-4, I think). The game now has sound, but only the title theme and some sound-effects (taking coin, loosing a life and jumping). Many new objects have been added since the last prototype.
I've placed three mines on level 1-1, don't get too close to them or they will explode! I also placed the jet-pack conveniently in front of Vent to pick up

, I thought you might want to try it! Not all levels has access to the sky though, but you can always use the jet-pack to avoid pitfalls and other things (but it isn't as easy as it looks!).
Collect the flag on each level to have it completed even after game-over! Not all levels have a flag at this moment though.
I hope you will enjoy this game!
This time it also comes with a map editor, which requires a bit of explanation:
When opening the map editor you will see a frame with a blue sky background. In the small box in the upper-left is a picture of the current item (in the start this is a coin, that is blue, but in the game it will go through colours of yellow), to the right of the small box is the "map", each pixel in this map represents a object that you have placed.
Inside the big frame is the "play field", there are some items that doesn't show while in the game but instead changes how the game works (like stop scroll to the left or to the right, or keep the selected background throughout the level and such things).
Pressing TAB will show a map of the entire level, press TAB again to go back.
Press PgDown / PgUp to go up/down one section. Doors make Vent go down one section. When there's a ladder to the sky and the ladder is at the first section then it will wrap to the last section but the last section in the game isn't the last section in the editor, so you have to go up one section in the editor to get to the last section as it will be in the game, this is because the last section in the editor isn't a complete section.
To select which object you want to place, press SPACE. All items available are visible in this screen. You select one of them by moving the rectangle and pressing ALT.
You place the item by using the cursor keys and ALT to place it. If you hold the button left of Z the cursor moves fast (not one by one).
To load a level you press ENTER, then ENTER again (a empty field skips it) and enter the level number (1 for level 1-1).
To save a level you press ENTER once and the first entry is the Save: dialog, enter the level number that you want to save the level as.
Each world has 11 levels, so to get the level number for 2-1 you use the calculation ((world-1)*11) + level, or you simply calculate it in your head (which I think is easier), the level number for 2-1 is as such 12.
Experiment and you'll figure out the rest, otherwise you can always ask in this thread and I will answer your questions.