
OVERDRIVE is an indie shoot 'em up that focuses on over the top bullet hell action while keeping it accessible to newcomers of the genre. There is no difficulty setting in the game, and instead contains a risk reward system that allows the player to decide how much risk they want to take in exchange for a higher score.
Quickstart Guide to playing Overdrive:
-Keyboard
* Arrows move ship/navigate menus.
* 'Z','X', Spacebar and Numpad0 - Activates Overdrive/Select.
* Escape - Pauses game
* 'S' - Takes a Screenshot and puts it in your [Drive]:\Users\[Your Username]\AppData\Local\Overdrive\Screenshots directory
-Gamepad
* D-pad move ship/navigate menus
* 'X' Button - Activates Overdrive/Select.
* Start Button - Pauses Game.

1. Main Overdrive Gauge
2. Charge Canister (Fully Charged)
3. Scoring Efficiency Gauge
4. Current Stage's Highscore
5. Your current score
6. Time left till either Bonus Rush starts or the stage ends (Depending on whether you die during the stage).
7. Current Overdrive Rate
8. Time left at current Overdrive Rate
Game Mechanics:
-Damage is directly converted into Score.
-The closer you are to enemies, the more damage you do.
-Activating Overdrive (Available once at least one Charge Canister is full) increases your damage. While in Overdrive you can activate successive Overdrives by filling up additional Charge Canisters, further increasing your damage output.
-Once Overdrive is activated you are invincible for 4.5 seconds.
-The more Damage you do, the quicker your Charge Canisters fill up.
-Your Primary Weapon starts firing automatically when the stage starts.
And with that you have everything you need to start enjoying OVERDRIVE. Follow the link below to download the Alpha of OVERDRIVE and start playing. Post all your Highscores in the comments below. I'm really eager to see what the pro players are able to achieve.
http://www.mediafire.com/download/v0mbg ... .1.0.1.zip
(OVERDRIVE is created as part of the Pieter Visser Studios range of games.)
Features for the enthusiast:
-Scanlines can be turned on in Options.
-Screen rotation and scaling available in options.
-On the Score Screen you can press up or down to cycle through various graphs showing your performance during the stage.
-Local leader boards.
Things to note:
-There is currently no menu music or sound effect. However the stages do have music and sound effects.
-The options that control music and sound effects volume has not been implemented yet.
-Pro Grid in the options has not been implemented yet.
Video playthrough of Stage 1


For those interested in probing a little deeper into the mechanics and some of the other design decisions, grab a comfy chair and mug of your favourite beverage.
Game Mechanics (In Depth)
-The closer you are to enemies, the more damage you do. So you really want to be up in their faces. How efficiently you are scoring (in terms of your primary fire) is shown by the Scoring Efficiency Gauge (Tag 3 in pictured above). It represents how much of your DPS (Damage per Second) is being converted into Score. This makes ground based enemies great as you can get right on top of them without fear of colliding with them, however you still need to watch out for their shots.
-Your Overdrive Rate ranges from 0 (Not active) to 3. For Overdrive Rates 1, 2 and 3 your Damage doubles, triples and quadruples respectively, however so does the amount of popcorn enemies meaning there are a lot more ships to collide with and a lot more of them shooting at you. Heavy Enemies buff up their Hit Points as the Overdrive Rate increases.
-You can activate Instant Overdrive by pressing and holding the Overdrive Button after activating Overdrive Level 1. This will make you trigger successive Overdrives automatically as your Charge Canisters fill up. (Aka white knuckle action)
-Heavy Enemies (The big ones that don't just melt in front of your shots)
* Any damage done to Heavy Enemies counts double towards your score.
* These enemies all consist of a Core that is protected by one or more Parts.
* Parts can only be destroyed by doing lots of damage to them quickly, exposing the Core.
* If damage is not done quickly enough, the Heavy Enemy will just be destroyed normally.
* Once the Core is exposed it will desperately try and kill you with a swarm of shots. Finishing it off in this way is what's know as obliterating the enemy, and at that moment all shots on the screen are turned into Point Tokens. The value of the Point Tokens depend on your Overdrive Rate when the enemy is Obliterated.
* The stages have been setup so that EVERY single Heavy Enemy can be obliterated, some situations are just a lot harder than others to achieve this, and require planning and practice.
-If you make it to the end of the stage without dying once, you are rewarded with a Bonus Rush.
* Bonus Rush is an additional section of the stage that lasts for 30 seconds.
* During Bonus Rush your Charge Canisters fill up very rapidly, and your Overdrive time stops decreasing.
* This makes it potentially one of the highest scoring sections of the stage.
Here are a few things you'll notice while playing OVERDRIVE:
-Infinite lives: This means you will always finish a stage and be rewarded with a Score Screen at the end. I felt that lives would hamper the enjoyment for the more casual players. The penalty for dying is the loss of time for scoring as well as any activated overdrive time (You keep any filled but unused Charge Canisters).
-No Bombs: In other words, no weapon that clears the screen of enemies and shots. This would disrupt the flow of the games as it's all about the balance of you pushing against the enemy waves.
-No End Stage Bosses: Blasphemy I know, instead the game has two difficulty peaks (In terms of enemy types spawned) in the middle and end of the stage. An extended peak is provided at the end of the stage (Bonus Rush) for those players who manage to finish the stage without dying once. Bosses were not included for the same reason as bombs as I felt they go against the flow of the game.
I've already shown the game to a very small focus group and have received incredibly helpfull feedback. Please feel free to leave any comments or feedback you have about the game below, I welcome them all. (Also don't forget to post your scores
