Level 1. GIT, FIT, GIFT, FIGHT, FIG
Level 2. SUE, SEA, BUS, BASE, ABUSE, USE
Level 3. NOD, ZONE, NODE, DOZEN, END
Level 4. RUN, BAR, BAN, RAN, BUN, BARN, BURN, URBAN
Level 5. BAR, ERA, ARE, BEAR, BARE, ZEBRA, EZRA
Level 6. TOW, ROT, HOT, HOW, WORTH, THROW, WHO
Level 7. REAM, MARE, DEAR, DARE, READ, DREAM, MEAD
Level 8. PACE, CAPE, EACH, ACHE, PEACH, CHEAP, HEAP