I wanted to offer more advice to help Omnimaga with being a friendly community.

A person writing a game or an application for calculators is not getting paid to do so, he or she is doing it for fun.  But a person has only so many hours in the day for "fun" as opposed to "work," so only so much can go into the game.  For this reason, the programmer has to choose what to put into a game and what to remove.  In my case, I choose what will be fun to program and what will be boring to program, even if the boring part will sweeten the look and feel of the game.  (There can be a boring portion that will take only 2 hours, and a fun portion that will take 10, yet I will still choose the fun part over the boring part )

But with sufficient peer pressure, the programmer will feel obliged to add a feature because "everyone wants it."  At this point, the list of what goes into the game gets larger and larger, until the programmer is either unable to finish the game or loses interest in the game.

Does this mean we shouldn't offer suggestions?  No.  Does this mean we should say that a game with numerous bugs is absolutely outstanding?  No.  What it does mean is we need to be content when a programmer says "That's a good idea, and I understand how you feel, but I don't want to do that."  If there's a really cool side-scrolling space shooter game, and the programmer doesn't feel like going through the trouble of adding triple lasers that fire in different directions, we need to understand that it's the programmer's game, and it will never get done if he feels too pressured to continue making it.

For Elimination, I'm replacing the knife with a saber sword.  Is there anyone who could provide 4 sprites, all 24x24: One showing the player holding a lightsaber, and three showing the player attacking with it?

This comic is funny, because any program with nothing but 0s does absolutely nothing

If I have a number stored in Register A, such as %01110010, what's the best way to turn it into %0011111100001100?  Meaning every bit in the register is doubled?  I don't care what the output register (or variable) is

Most instructions on the Z80 processor were designed with a purpose, and you can't do anything except what the instruction was created for.  For example, you can't do anything with ld a, imm₈ except store a byte value into register A.  Similarily, you can't use ld a, e to pop hl off the stack 

However, there are those rare times that you can use an instruction creatively for a purpose that the Z80 designers did not intend!  Please share your stories

Mine deals with LDD.  For a routine I'm working on for Elimination, I always need BC to point to one byte before HL, where HL holds the data from plotsscreen to transfer to a buffer.  This is because I need access to both (HL) and (HL-1) every time a byte is transferred to the buffer.   By using LDD, I can decrease HL and BC at the same time, even though the Z80 designers meant for BC to be decreased as a Byte Counter.

I've been looking for a game which does a really good job at letting someone design a transit system and then just letting it run--making adjustments from time to time to make money.  Ideas?

I tried Traffic Giant and it doesn't work on my computer.

I found a page on WikiTI that described what areas of RAM (on RAM page $83) were used for MathPrint and other stuff.  I don't remember where that wikiti article is now, can someone post a link?

To start this topic off: I'll have a better screenshot for Level 3 later, but since I have a few more bugs to fix before Level 3 is finished, I didn't want to keep people waiting.