With green yarn, start with a magic ring.
Round 1: 6 sc into the magic ring (6)
Round 2: inc in each st around (12)
Round 3: *sc, inc* repeat around (18)
Round 4: *2sc, inc* repeat around (24)
Round 5-10: sc in each st around (24)
Round 11: *2sc, dec* repeat around (18)
Round 12: *sc, dec* repeat around (12)
Stuff with polyester fiberfill.
Round 13: dec around (6)
Fasten off and sew the hole closed.
With green yarn, ch 6.
Row 1: starting from 2nd ch from hook, sc across (5)
Row 2-6: ch 1, turn. sc across (5)
Fasten off, leaving a long tail for sewing.
Attach legs to the body. Sew on brown spikes down the back. Use yellow yarn to embroider eyes and nostrils.
Your dino-mite friend is now ready to play!