See, that kind of thinking is keeping great people from making great things, and that is why we are fed utter crap.
What are sprites?...
No, it's that kind of thinking that keeps people from getting their hopes up about things that will never happen. Rarely do internet-borne ideas come to any sort of fruition. Thinking realistically only keeps one from being the subject of continual disappointment when things fizzle out.
OK, first, let’s help out Bllue with a definition. Sprites are video game objects - not just the characters in the game but any object in the game with which a character can be interact. By interact, that can include characters moving, pushing buttons, moving levers, occupying/driving vehicles, or blasting objects or other characters into oblivion.

Bllue/Hobo, I’m in the uncomfortable situation of agreeing with both of you.

How about we just agree it’s alright to dream, so long as one tempers their “projects” with reason. It’s not so much that Internet-borne ideas rarely come to fruition, as it is any idea that remains in the “thinking stage” too long:
Genius is one percent inspiration and ninety-nine percent perspiration - Thomas EdisonPeople often forget or are unable to do that 99%...
In my experience with writing a video game for a home computer, I ran into real obstacles:
An incomplete personal knowledge of the specific hardware, lack of usable resources (that computer’s use then wasn't as widespread as PC’s are used now), lack of good design software (also because of it's popularity), the graphics hardware had limitations, the hardware’s processing power had limitations.
In a nutshell, I tried to write a one-screen, side-scroll, in Atari XL BASIC. The results, while functional, weren’t great. For sure, I’ve written PC programs, even those in PC BASIC, that were worlds better.
In writing a game, as with any software, your allies will be your resourcefulness, personal knowledge, resources (Internet and otherwise), and development tools and kits. Your obstacles will be time; “holes” in your personal knowledge; tool and kit availability and limitations; and the difficulty of converting information you’ve just acquired into actual knowledge. (One can possess a book without grasping the meaning of its contents. Majin Vegeta was referring to this obstacle.)
Don't let this scare you, though, shadowdorothy. Gather your knowledge and helper software, and see if you can proceed. If so, cool. If not, put it on hold or stop. No harm, no foul - just like any fun thing should be...