There are differences in how the box opens, an asterisk or might not be present after the TM on the front, the back of the cards artwork has different cards, Pokemon is sometimes centered aligned on the back of the box and sometimes aligned left, the pull strip can be gold or clear, and the copyright dates could be 1999 or 1999-2000
These cards showcase temporary, powered-up versions of certain Pokmon, and they usually show up as rare Mega EX (often Secret Rare) pulls with beefier HP, harder-hitting attacks, and artwork thats far more dramatic than your average card
What it means: Basic Pokemon, simple trainers, energy cards
What Are The Best 1990 Topps Baseball Cards
Level cards are a 5-point yellow star with a red-orange circle around it
These were the first true sets of football cards that illustrated professional players and showcased players like Red Grange, Knute Rockne, and Jim Thorpe