Doors (Yoshiyuki Komura)

Title – Doors
System – MSX
Author – 古村　由幸 (Yoshiyuki Komura)
Publication – Micom BASIC (マイコンBASIC) July 1985
Page Scans – 1 2
Preserved By – TWE
Recommended Emulator – openMSX

Download ROM

Loading the Game –

Files:
doors.wav: Tape recording of Doors program
doors.dsk: Self-booting disk image of Doors program

For doors.wav:
– After booting the machine, insert the tape image;
– Type ‘CLOAD’ and press Enter;
– After the game loads, type ‘RUN’ and press Enter to start the game.
For doors.dsk:
– Insert the disk image in the first slot, then boot the machine;
– The game should load and start automatically.

Game Instructions –

Use the arrow keys to move and press Space three times to open a door or lock;
Opening the elevator’s door allows you to go to another floor with an elevator by using Up and Down;
Find a key to open the garage containing the car and escape in it when you find the car keys;
The doors that flash contain point bonuses; In the bonus rounds, open the doors by the order they flash.

Article Translation –

MSX
Doors
Yoshiyuki Komura

How to Play
Track down the garage and car keys hidden in the building’s 52 doors to open the garage, find the car and escape. If you touch and enemy, run out of power or let it get too high (over 4000), you die. Leaping down will cause you to lose a chunk of your power.
To use the elevator at the center, stand in front of its door and press the Space key several times until the enemies stop alongside the sound. When that happens, you may warp up or down by pressing the corresponding directions.
In the bonus round, you have to open the doors that flashed in order. The purple door is the first one, and the number of doors that flash corresponds to the round’s number, so rounds 1 and 2 should be extremely simple.
The doors that flash at the start of either contain an EXTRA(yellow) or a multiplier(red) upon opening. The four sounds that occur when the game starts, at the beginning of a round (right before the doors flash) are also hints to certain things.
The place where the car key is related in some degree to the score.
What lies behind a door is shown below the score, and can be one of the following:

●CAR KEY …… Without this, you can’t clear the stage.
●KEY …… Opens a passageway to the 8th floor, or a garage from the 1st floor.
●X n …… Multiplies by n (consecutives are 2 times n, minus n + 1)
●EXTRA n …… By getting 4 of these consecutively from the round’s start, you get one life. Furthermore, getting 6 nets you another life.
●ENEMY …… Adds 1 enemy.
●BONUS …… 300 * (multiplier) Pts.
●POWER …… Increases power.
●EMPTY …… Empty (decreases power, getting it 2 times removes an enemy).

Conclusion
Doors that have been opened once will be empty. Also, you may only hold one key, so take caution. Multipliers get more useful the higher they are, and affect both power and bonuses. The speed changes according to the amount of power.

{Picture 1} Search for the keys and escape with the car inside the garage!
{Picture 2} Open the 52 doors while running from the enemies!
{Picture 3} Having the enemies gather up in one place’s great!
{Picture 4} Success, you can now escape with the car

CHECKER FLAG
Dr. D: Do you understand what the P(X,Y)=VPEEK(2048+X+Y*32) at line 80 is supposed to do?
Editor: I think it’s supposed to access the V-RAM’s contents. X is the horizontal coordinate, and Y is the vertical one, right?
Dr. D: Exactly. By doing this, you get a speed-up!

★You’re gradually getting sleepy. Within less then a week’s time, you shall certainly rest. You shall certainly die… within less than 1000 years’ time. (Machida, Tōkyō・Mr. Sawa Baer)……【Kage: That’s obvious!💨 Here’s an example: you shall certainly read this sentence. So, you read it, right??】
★Problem: “T:@XYF@YX@E”…When you solve this cipher, head to the OF corner. (Hiroshima・MSX Akira-kun, 13 y.o.)……【Editor: Ciphers are the Dr.’s specialty. Dr. D: ♪We’ve got a cipher♪ Editor, Dr. D: …excuse us. Kage: What a waste of time.】