The maingame goal is not to achieve a single "lingo", but to accumulate as many points as possible.
In the first round, successfully guessing a word is worth 25 points, and achieving a "lingo" is worth 50 (once the latter has been made, that team recieves a new game card, and control defaults to their opponents).
Round 2 is played the same way, except the point values doubled to 50 for a correct guess and 100 for a "lingo"; in addition, 3 "wildcard" balls, each containing a question mark, are placed in both teams' hoppers, and if one is drawn, it can be used to cover any open space on that team's card. Whichever team is ahead at the end of this round wins the game and goes on to play "Bonus Lingo".
(NOTE: In the event of a tie at the end of round 2, a blank 7-letter word is shown, w/2 letters revealed at a time in sequence: the first and last, then the 2nd and 6th, and finally the 3rd and 5th; the remaining middle letter is not given. The first player to buzz in and correctly identify the word wins; if incorrect, they are out, leaving their opponents free to guess all by themselves. However, if the opponents' guess is also incorrect, both teams are back in for the remainder of the word.)
"Bonus Lingo":
The winning team is given a 2-minute time limit to identify as many 5-letter words as possible; two letters to each word are shown (always the first, while the second one's placement varies), w/up to 5 tries for each word. Each successful guess wins the right to draw an additional ball at the end of the round; if a team fails to do so after 5 tries, the correct answer is given and they must move on to the next word.
In addition, should a particular word prove to be a stumper, the team is entitled to bonus letters, w/1 given automatically and additional ones awarded for each "lingo" made during the maingame; if called for, an additional letter in that word is placed in its correct position.
Once time is up or (during season 5) the maximum 10 words have been successfully guessed, the team is given a new Lingo card w/12 spaces covered and makes whatever number of draws they earned the right to. If a lingo is made, they win $5,000; otherwise, each word identified in the earlier part of the round is worth $100 apiece.
If a lingo is made on the very first draw (which is difficult, since due to the strategic placement of the free spaces, it can only be achieved via one particular five-in-a-row combination), the team wins:
- $5,000 and a vacation (seasons 2-3)
- $10,000 cash (season 4)
- A jackpot which begins at $10,000 and increases by $1,000 for each show it's not won (seasons 5-6)
For the first 20 episodes, there were several notable differences in Bonus Lingo from later seasons: