Year.Release <- game$Year.Release
counts <- data.frame(table(Year.Release))
p <- game %>%
  select(Year.Release, Global.Sales) %>%
  group_by(Year.Release) %>%
  summarise(Total.Sales = sum(Global.Sales))
q <- cbind.data.frame(p, counts[2]) # Add counts to data frame
names(q)[3] <- "count"
q$count <- as.numeric(q$count)

ggplot(q, aes(x = Year.Release, y = Total.Sales, label = q$count)) +
  geom_col(fill = "green") +
  geom_point(y = q$count * 500000, size = 3, shape = 21, fill = "Yellow") +
  theme(
    axis.text.x = element_text(angle = 90),
    panel.background = element_rect(fill = "purple")
  )